Determine the total number of atoms for each chemical formula!!

Determine The Total Number Of Atoms For Each Chemical Formula!!

Answers

Answer 1

Answer:

9 for the first one

19 for the second

20 for the third

13 for the fourth

9 for the fifth


Related Questions

(a) indicate which orbitals in the following list fill before the 4p orbitals. 3d 4s 4d 5s (b) what is the maximum number of electrons in the 4s subshell? (c) an electron in an orbital has the following quantum numbers: n

Answers

a. In the following list 4s orbital can be filled before 4p orbital.

b. The maximum number of electrons in 4s subshell is 2.

c. An electron in an orbital has 4 quantum numbers n, l, ml, ms.

According to the Aufbau principle, electrons first occupy lower-energy atomic orbitals before moving on to higher-energy ones. Hence 4s orbitals filled before 4p followed by filled d orbitals. similarly the maximum capacity of s subshell to hold electron  is 2, while p subshell is 6, 10 for d subshell and 14 for f subshell. Electron in an orbital can be completely described by principle quantum number n which represents the main electronic shell, Azimuthal quantum number l determines an orbital's shape, magnetic quantum number ml defines how many orbits there are and how they are oriented within a subshell and spin quantum number ms describes the spin of electrons.

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The sarcoplasmic reticulum calcium transport ATPase (SERCA) D351A mutant has the P domain Asp 351 residue replaced by alanine. How would this affect the Ca2 ATPase?

Answers

SERCA D351A cannot be phosphorylated by it.

What happens if you have low calcium levels?

Calcium deficiency can affect every part of the body, resulting in thin, brittle skin, sluggish hair growth, and brittle nails. Calcium has a critical role in both the neurotransmitter release and indeed the contraction of muscles. As a result, persons who are calcium deficient and otherwise healthy may experience seizures.

What happen if you consume too much calcium?

Too much blood calcium can harm your bones, develop kidney stones, and have an impact on how well your heart and brain work. Usually, parathyroid glands that are overactive lead to hypercalcemia. These four tiny glands are situated near the thyroid in the neck.

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in the cytoplasm, some of the lactose is converted into , which binds the site of the lac repressor.

Answers

The lac operon is a group of genes that make up an mRNA. These genes are those that allow the consumption of lactose through the proteins of the bacteria, as is the case with E. Coli.

The Lake Repressor

The lac operon is made up of three genes, which constitute the mRNA, that is, the factor responsible for promoting the union and decomposition of lactic acid in bacteria, the process occurs as follows:

The lacZ gene codes for lactose and breaks it down into molecules called monosaccharides.

The lacY gene favors the transport of lactose within the bacterium.

Once the product reaches the positive regulator, transcription is achieved thanks to the binding of the catabolite-activating protein.

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Which element has chemical properties that are most similar to the chemical properties of sulfur, s?.

Answers

Answer:

tellurium

Explanation:

Thus, elements under the same group share similar chemical properties. Among the given elements, only tellurium belongs to group 16, and is, hence, the only element among the choices that is similar chemically to sulfur.

Write a balanced equation for the following word equation:nitrogen dioxide + water + oxygen arrow nitric acid

Answers

Answer:

2H2O+4NO2+O2=4HNO3

Explanation:

LEFT HAND SIDE(L.H.S)                    RIGHT HAND SIDE(R.H.S)

N=1X10X2  =20                                      N=1X10X2=20

H=2X5X2   =20                                    H=1X10X2=20

O=1X5X2+10X2X2+2 X5                      O=3X10X2=60

   =60

First multiply H2O by 2 to get an even no. of oxygen on L.H.S

make a similar chart at every turn to record the changes in number.

then multiply R.H.S by 2 to equate the hydrogen

multiply N by 2 on LHS to equate them.

the no of O changes

Multiply RHS by 2 again,

equate the LHS by multiplying NO2 by 2 again, i.e total 4

you now have the answer

What dose Eph stand for

Answers

Not 100% sure on this since there isn’t much. but since it is chemistry, I will have to say “extractable petroleum hydrocarbons”

how many atoms in bcc

Answers

In a bcc unit cell, there is one atom in the body's center and eight others in each of the cell's eight corners. The unit cell is entirely made up of the atom at the center of the body. Each corner atom contributes one eight to the unit cell. Therefore, 818+1=2 atoms make up the entire number of atoms in the unit cell.

the body-centered cubic is named after the central atom. However, there are eight corners, each of which has a shared atom with seven unit cells nearby. As a result, each corner of the unit cell contains 1/8 of an atom, which adds up to 1 whole atom.

A unit cell is the smallest repeating arrangement of atoms found in a crystal. The body-centered cubic (BCC) unit cell, a third typical metal packing arrangement, includes one atom in the cube's core in addition to atoms at each of its eight corners. The corner atoms in each unit cell will be divided among eight unit cells because each corner atom is the corner of another cube. The central atom and the eight eighths from the corners make up the BCC unit cell's total of two atoms.

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. Balance the equations and identify the type of reaction. (48 points total: 6 points per question=2
points per reaction type and 4 points for the coefficients)
a. ___Na3N → ___Na + ___N2 Reaction Type:
b. ___H3PO4 + ___KOH → ___K3PO4 + ___H2O Reaction Type:
c. ___N2 + ___H2 → ___NH3 Reaction Type:
d. ___H2O2 → ___ O2 + ___ H2O Reaction Type:
e. ___Zn+ ___HCl → ___ZnCl2 + ___ H2 Reaction Type:
f. ___C2H6 + ___O2 → ___ CO2 + ___H2O Reaction Type:
g. ___CuCl2 + ___ H2S → ___CuS + ___HCl Reaction Type:
h. ___N2 + ___ O2 → ___ N2O5 Reaction Type:

Answers

The balanced equation of the reaction and the reaction types are given below as follows:

a. 2 Na₃N → 6 Na +  N₂ Reaction Type: decomposition reaction

b. H₃PO₄ + 3 KOH →  K₃PO₄ + 3 H₂O Reaction Type: Neutralization reaction

c.  N₂ + 3 H₂ → 2 NH₃ Reaction Type: Synthesis

d. 2 H₂O₂ →  O₂ + 2 H₂O Reaction Type: Decomposition

e. Zn+ 2 HCl → ZnCl₂ +  H₂ Reaction Type: single displacement

f. 2 C₂H₆ +  7 O₂ → 4 CO₂ + 6 H₂O Reaction Type: Combustion

g. CuCl₂ +  H₂S → CuS + 2 HCl Reaction Type: Double displacement

h. 2 N₂ + 5 O2 → 2 N₂O₅ Reaction Type: Synthesis

What are chemical reactions?

Chemical reactions are reactions that result in the formation of new substances as a result of chemical changes that occur in the substances undergoing the reaction.

In a chemical reaction, the substances that undergo chemical changes are called reactants while the new substances that are formed are called products.

A balanced equation of a chemical reaction is one in which the moles of atoms of reactants are equal to the moles of atoms of the products involved in the reaction.

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Which of these "curved arrows" describe a mechanism for the formation of a carbocation that has roughly the same stability as this one? HHH - H- C- C 70-I CH H H-C-H Н AA only [B] B only [C] C only [D] B and C only [E] A and C only Explanation for your choice (4 pts)

Answers

The correct answer is B and C only.

Nonlinear arrows with barbs on one-stop are used to signify electron waft. A double-barbed arrow suggests the motion of an electron pair, while an unmarried-barbed arrow indicates the movement of an unmarried electron. A full head on the arrow indicates the movement or shift of an electron pair A partial head at the arrow indicates the shift of an unmarried electron.

The factor of the curved double-headed arrow is to expose the movement of an electron pair. They start on the tail and end up at the pinnacle. Arrows are universally acknowledged for indicating guidelines. they may be broadly used on signage and for wayfinding, and are frequently used in avenue surface markings. Upward arrows are frequently used to indicate a growth in a numerical fee and downward arrows suggest a decrease.

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quantum mechanics, although mathematically complex, does far better in describing polyelectron systems than the bohr equation. how many total quantum numbers are required to describe the behavior of an electron in any system? a. 1 b. 2 c. 3 d. 4 e. 5

Answers

Quantum mechanics, although mathematically complex is 4

What is quantum number ?

A total of four quantum numbers are used to fully describe the motion and trajectory of each electron in an atom. The combination of  quantum numbers of electrons is described by a wavefunction corresponding to the Schrödinger equation. Each electron has a unique set of quantum numbers. According to  Pauli exclusion principle, no two electrons share the same combination of he four quantum numbers. Quantum numbers are important because they can be used to determine the electron configuration of atoms and the putative positions of atomic electrons. Quantum numbers are also used to understand other properties of atoms such as: B. Ionization energy and atomic radius. Atoms have four quantum numbers.

Principal (n), orbital angular momentum  (l), magnetic  (ml), electron spin  (ms).

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The following properties are either physical or chemical. Which one is different from the rest based on those two categories? density flammability heat of combustion reactivity.

Answers

Density is different from the rest based on those two categories. density is a physical property.

Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter. Two types of it intensive and extensive properties. This classification relates to the dependency of the properties upon the size or extent of the system or object in question.

An intensive property is a bulk property, meaning that it is a physical property of a system that does not depend on the system size or the amount of material in the system. Examples of intensive properties include temperature, refractive index, density, and hardness of an object.

Chemical properties of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change. For example : Metals in general have they chemical property of reacting with an acid.

Flammability - The susceptibility to combustion is a chemical property and the susceptibility to combustion is unknown. Fire tests are performed to determine how difficult or easy it is to burn a particular material.

Heat of Combustion - This chemistry is the amount of energy released as heat when a substance burns with oxygen.

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.

Compound X has a relative molecular mass of 88
Deduce the molecular formula of compound X.

Answers

Answer:

Explanation:

Butanoic acid С₄Н₈0₂

M = 4·12 + 8·1 + 2·16 =  88

The empirical formula represents the simplest whole number ratio. The molecular formula of the compound X with a relative molecular mass of 88 is Butanoic acid and the molecular formula is C₄H₈O₂.

What is molecular formula?

The formula in which the actual number of all the atoms of various elements present in one molecule of the compound is represented is known as the molecular formula.

The molecular formula of a compound is a whole number multiple of its empirical formula.

Molecular formula = n × Empirical formula

Here butanoic acid has the molar mass 88.11 g/ mol and its molecular formula is C₄H₈O₂. It is a straight chain alkyl carboxylic acid and it is an oily colourless liquid. It is also used as a food flavoring agent and a safe food additive.

Thus the compound X is Butanoic acid or Butyric acid.

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If 250 ml of methane, ch4, effuses through a small hole in 28 s, the time required for the same volume of helium to pass through the hole under the same conditions will be.

Answers

Answer: 10s

Explanation:

Ideal gas law is valid only for ideal gas not for vanderwaal gas. To solve such, we need to know the relation between rate of effusion and molar mass of gases. Therefore, the same volume of helium to pass through the hole under the same conditions will be same.

What is ideal gas equation?

Ideal gas equation is the mathematical expression that relates pressure volume and temperature.

Mathematically the relation between rate of effusion of gases and their molar masses can be given as:

rate of effusion of unknown gas/rate of effusion of methane gas=√molar mass of methane/molar mass of particular gas

The same volume of helium to pass through the hole under the same conditions will be same according to  grahams law of diffusion.

Therefore, the same volume of helium to pass through the hole under the same conditions will be same.

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which can decrease the presence of air bubbles in carbomers? i. introduce a carbomer into water slowly. ii. sprinkling a sieved powder into the vortex created by slowly stirring the medium. iii. once all powder is added, reduce speed.

Answers

Sprinkling a sieved powder into the vortex created by slowly stirring the medium can decrease the presence of air bubbles in carbomers

What is Air bubbles in carbomers?

To simulate ebullition from lake sediments, air bubbles are injected into a Carbopol column that has a water cap on top. When the first bubble rises through the carbopol, it creates an invisible path. In contrast to the original bubble, subsequent bubbles rise along this path and split into two distinct bubbles. The smaller breakdown bubble separates and is confined inside the carbopol as the larger leading bubble rises through the water column.

Water from the upper layer progressively fills a conduit that forms above this breakup bubble.

This conduit grows until it reaches an equilibrium depth, at which point it begins to contract. The rising bubbles in the conduit resemble Taylor bubbles but are moving at speeds that are 5-7 times greater than their maximum speed.

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Clo3− draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all nonhydrogen atoms.

Answers

The formal charges of all nonhydrogen atoms are -1.

Solution:-

O 7-4 = 3 O Double bond on one H 5-4 = 1

O-Cl-O 6-7 = -1x4 = -4 N 5-4=1 H-N-H 1-1=0

O 3-4= -1 O O 6-7 = -1(2)=-2 H 1-0=+1

6-6 = 0 1-2 = -1

It will percentage its last valence electron thru a single bond to the terminal oxygen atom. This is in agreement with carbon and hydrogen atoms that each need to form 4 and 1 covalent bonds respectively. because the terminal oxygen atom best has a single covalent bond, it'll have a proper rate of -1.

According to the lewis structure of SO2, The critical atom is sulfur and it is bonded with 2 oxygen atoms thru a double bond. each oxygen atom acquires 2 lone pairs of electrons and the primary sulfur atom has 1 lone pair of electrons.

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ayou are trying to determine the age of a lava flow using an isotope with a half-life of 1.5 million years. if the sample has gone through four half-lives, what is the age of the rock?

Answers

The age of the rock is 6 million years.

What is a half-life of an isotope?
A radionuclide's half-life is the amount of time it takes for half of its radioactive atoms to decay.

Do all isotopes have a half-life?
All isotopes have a half-life if proton decay is real, but those that are stable in a universe without proton decay will simply live a lot longer than the others.

Why are isotopes measured in half-lives?
Due to an isotope sample's exponential rate of decay over time, the half-life is used as a practical measurement. In a fixed amount of time, each atom is given the same chance of decaying, which causes exponential decay.

Age=4 half lives * 1.4MY/half life

Age=6 million years.

Thus, the age of the rock is 6 million years.

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based on their positions in the periodic table, predict which atom of the following pair will have the smaller first ionization energy:

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based on their positions in the periodic table, the smaller first ionization energy is calcium

Ionization energy is also called as ionization potential is the amount of energy required to remove an electron from an isolated atom or molecule and by looking at the periodic table the beryllium and calcium are in the same group with beryllium being 2 period above calcium and therefore the calcium has the smaller first ionization energy and first ionization energy of chlorine is 12.9676 eV

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examine the p-block elements of the 2nd period (b through ne). which subshell is being filled while moving across these elements? what is the maximum number of electrons this subshell can hold?

Answers

It covers 6 elements, from boron to neon. Boron is in group 13, carbon in group 14, nitrogen in group 15, oxygen in group 16, fluorine in group 17 and neon in group 18. Subshell is being filled while moving across these elements is p subshell with maximum number of electrons this subshell can hold to 6 electrons

Different subshells hold a different maximum number of electrons. Any s subshell can hold up to 2 electrons; p subshell up to 6 electrons; d subshell up to 10; and f subshell up to 14.

The atomic number of boron is 5. Here is the electronic configuration:

B₅ = 1s² 2s² 2p¹

The atomic number of carbon is 6. Here is the electronic configuration:

C₆ = 1s² 2s² 2p²

The atomic number of nitrogen is 7. Here is the electronic configuration:

N₇ = 1s² 2s² 2p³

The atomic number of oxygen is 8. Here is the electronic configuration:

O₈ = 1s² 2s² 2p⁴

The atomic number of fluorine is 9. Here is the electronic configuration:

F₉ = 1s² 2s² 2p⁵

The atomic number of neon is 10. Here is the electronic configuration:

Ne₁₀ = 1s² 2s² 2p⁶

It can be seen that each electron configuration is embedded with a 2p subshell with maximum number of electrons this subshell can hold to 6 electrons.

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I need help with my project!!!!!


Unit Essential Question: How can we harness Earth's energy for our community's needs?

Problem:
We need environmentally-friendly forms of energy.
Wind and solar farms take up lots of space/habitats, and
impact the animals around them.
Challenge
There's a new parcel of land that is being developed in the Antelope
Valley and three companies are bidding on the contract. One company will use solar energy to power the
development, one company plans to use wind power, and your company is using geothermal energy to
power it. Many people don't want to see solar and wind farms for aesthetic reasons and for harm to
natural habitats. So, there's been a growing demand for geothermal energy.
You will be developing a parcel of land with a building that harnesses
geothermal energy from the ground below. You will make a plan and
present it to the class. Create a slides presentation.

Project Criteria for Success:
To prepare for your presentation, discuss the components below. In your presentation, please include the
following:
• A description of your building or development - including what type of building you used (i.e.
school, housing, hospital, church, ranch/farm, park, etc...).
A model (i.e. diagram, physical, or simulation) that describes the forms of energy (i.e. kinetic and
potential energy) involved in your building
how energy (i.e. thermal energy) is transferred in your building
A discussion about the benefits and drawbacks of using geothermal energy in the Antelope Valley
as compared to solar and wind as an energy source.

Answers

Answer:

Use a school

Explanation:

You could use a building like a school then you could use the lights as thermal energy then you make up an example of potential energy and when is this assignment due?

Create an energy transformation for a whistling tea kettle on a stove. EX: THERMAL TO ELECTRICAL​

Answers

Answer: thermal from electrical you would need something to take the heat to electrical energy.

Explanation: it creating heat not  electricity

Explain how the information from the timuli i communicated to the brain. Pleae Hurry Do not know how to give brainliet but if I figure it out I will try if I have ome. And pleae make ure the anwer i right, Thankyou

Answers

We know; Neurons communicate using both electrical and chemical signals.

What is neuron?

The basic building blocks of the brain as well as nervous system are neurons. They are the cells that receive sensory information from the outside world, send motor commands to our muscles, as well as transform and relay electrical signals at each stage along the way. Beyond that, our interactions with them shape who we are as people. However, our approximately 100 billion neurons can interact closely with other cell types that are generally referred to as glia. Neurogenesis, which can occur in adults, is the process of the brain producing new neurons. Consider a neuron as a tree for an effective analogy. Dendrites, axons, and the cell body, or soma, are the three main components of a neuron.


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Can the element gold kick out magnesium from a compound?

Answers

Gold cannot replace Magnesium from a compound as gold is placed lowest in the reactivity series of metals. It won't even react with the compound let alone replace it. Gold has great ductile strength and malleability.

 Features of Reactivity Series of Metals

The metals at the top of the reactivity series are powerful reducing agents since they are very easily oxidized. These metals tarnish or corrode very easily though.The reducing ability of the metals grows weaker while traversing down the reactivity series.The electro-positivity of the elements also reduces while moving down the reactivity series of metals. All metals that are found above hydrogen in the activity series liberate H2 gas upon reacting with dilute hydrochloric acid(HCl) or dilute sulphuric acid(H2SO4).Metals than on the reactivity series have the ability to displace metals that are placed lower from their salt solutions such as Mg can replace Au but Au cannot replace Mg as Au is kept lowest in the reactivity seriesHigher ranking metals require greater energy for their isolation from ores and other compounds to stay highly reactive.

Therefore Gold cannot replace Magnesium from a compound as it is the least reactive metal and therefore, comes lower than Magnesium in the reactivity series

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Subatomic particles can usually pass undeflected through an atom because the volume of an atom is composed of.

Answers

Subatomic particles can usually pass undeflected through an atom because the volume of an atom is composed of mostly space.

What are subatomic particles?

The positively charged nucleus of an atom is surrounded by a cloud of negatively charged electrons. The electrons are in constant motion, moving around the nucleus in a random pattern. The size of an atom is determined by the size of this electron cloud. Most of the volume of an atom is actually empty space.

Subatomic particles are usually able to pass through an atom undeflected because they are so much smaller than the atom itself. The nucleus of an atom is only a tiny fraction of the size of the atom, and the electrons are even smaller. Subatomic particles can easily pass through the spaces between the nucleus and the electrons.

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Identify What season is the Northern
Hemisphere experiencing in the image above?

Answers

Season is the northern hemisphere experiencing in the image above is winter

Northern hemisphere is the half of the earth that lies north of the equator and earth tilted axis causes the season and throughout the year different part of the earth receive the sun most direct rays and so when the north pole tilt toward the sun and when its south pole tilt toward the sun its winter in the northern hemisphere and our northern winter is in dec, Jan and Feb

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If you forgot to add the primers to your pcr reaction, what would happen and why?.

Answers

Your experiment would not work because Taq polymerase needs a tiny bit of DNA to add bases to. Due to the lack of an enzyme that could add new nucleotide bases, your process would not succeed.

What would happen if the primers for your PCR reaction were left out?

The primers are absolutely necessary for a PCR reaction to work. The RNA primers must anneal before the heat-resistant DNA polymerases may start replicating DNA. The DNA polymerase cannot work without the primers, and as a result, no product will be produced.

DNA polymerase requires a primer on which it may add the first nucleotide since it can only add a nucleotide onto an already-existing 3'-OH group. This prerequisite allows the researcher to identify a particular area of the template sequence that they want to amplify.

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the decomposition of hi(g)hi(g) at 298k298k is represented by the equilibrium equation above. when 100.torr100.torr of hi(g)hi(g) is added to a previously evacuated, rigid container and allowed to reach equilibrium, the partial pressure of i2(g)i2(g) is approximately 3.7torr3.7torr. if the initial pressure of hi(g)hi(g) is increased to 200.torr 200.torr and the process is repeated at the same temperature, which of the following correctly predicts the equilibrium partial pressure of i2(g)i2(g), and why?

Answers

PI2 ≈ 7.4 torrPI2 ≈ 7.4 torrs because it is directly proportional to the initial pressure of HIHI.

At equilibrium, the forward and reverse reactions occur at the same rate. Once equilibrium is reached, the amounts of each reactant and product remain constant. The equilibrium constant equation is a mathematical relationship that describes how the concentrations of products vary with the concentrations of reactants.

The state of a system whose properties are fixed under unvarying external conditions is called the equilibrium state. Chemical equilibria are dynamic in nature because reactants turn into products and products turn into reactants even after equilibrium is reached. However, the speed of forward and backward reactions is the same. Examples of balance include A book placed on the table. A car that moves at a constant speed. A chemical reaction in which the forward and reverse reaction rates are equal.

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select the single best answer. identify the relationship in the following pair. do the drawings represent constitutional isomers or stereoisomers, or are they just different ways of drawing the same compound? if they are stereoisomers, are they enantiomers or diastereomers? h571915x and h571915b

Answers

They are just different ways of drawing the same compound, the following pair are diastereomers.

The given pair of compounds are not constitutional isomers, because constitutional isomers have the same molecular formula but different bond connectivity. But the given pair have the same bond connectivity.

The given pair of compounds are stereoisomers because they have the same molecular formula but the 3D space arrangement is different. And finally, the given compounds are not mirroring images of each other so we call them diastereomers, not enantiomers. As enantiomers are superimposable mirror images of each other. The structures of the given pair of compounds are attached as a picture.

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The density of WATER is 1gmL. Is the unlabeled clear liquid WATER? Why or why not?

Answers

Correct option is C)
Density of water (d)=1g/ml

Mass of 1ml of water= 1g

Number of molecules in 1gm of water=
18
1×6.022×10
23




Volume of
18
6.023×10
23


molecules= 1ml

∴ Volume of 1 molecule=
18
6.023×10
23



1

=3×10
−23
ml

Hence, the correct option is C

80 g of sodium hydroxide reacts with excess sulfuric acid to produce 142 g of sodium sulfate. What mass of sodium hydroxide would be needed in order to make 50 g of sodium sulfate?.

Answers

28.16 grams of Sodium hydroxide would be required to make 50 grams of sodium sulfate.

The gram is a unit of mass in the International System of Units (SI) which is equal to one thousandth of a kilogram. Gram is something that is related to the mass as well.

Mass is actually the measure of the amount of matter in a substance or any object. The basic SI unit for mass is the kilogram (kg), but usually the smaller masses may be measured in grams (g). To measure mass, you would use a balance or even a scale.

In the above question it is said that 80 grams of Sodium hydroxide reacts with sulfuric acid to produce 142 grams of sodium sulfate. So then to produce 50 grams of sodium sulfate, the amount of Sodium hydroxide will be;

⇒ 80 × 50  = 28.16 grams

      142

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Calculate the enthalpy of solution per mole NaOH (s) to form a 1.0 M NaOH solution. The mass of the solution is about 52 g (H2O + NaOH). The specific heat of the NaOH solution is about 3.90 J g-1 °C-1. Show all of your work.

Answers

The enthalpy of solution per mole NaOH (s) is 0.075 J.

Enthalpy, belonging to a thermodynamic gadget, is the sum of the machine's inner strength and the made of its stress and volume. it's far a state function used in many measurements in chemical, organic, and bodily systems at a steady pressure, which is without problems furnished by way of the massive ambient environment.

Calculation:-

H = mΔHf

ΔHf = H/m

       = 3.90/52

      = 0.075

Enthalpy is the quantity of inner electricity contained in a compound while entropy is the amount of intrinsic disorder inside the compound. Enthalpy is zero for elemental compounds consisting of hydrogen gas and oxygen gas; consequently, enthalpy is nonzero for water (no matter segment.

In thermochemistry, the enthalpy of solution is the enthalpy exchange related to the dissolution of a substance in a solvent at regular strain resulting in limitless dilution. The enthalpy of the answer is most usually expressed in kJ/mol at a steady temperature.

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Other Questions
propose an explanation for the nearly pure carbon dioxide atmospheres of venus and mars. (select all that apply.) carbon dioxide was probably produced as a byproduct of respiration from ancient bacteria that used to inhabit venus and mars. carbon dioxide was probably brought to venus and mars within meteorites and asteroids. carbon dioxide was probably released from molten rocks during lava flows, or it could have been produced when rocks were melted when many meteorites struck the surfaces of venus and mars. as venus and mars lost most of the liquid water they initially had, carbon dioxide was not dissolved in the water and thus not converted to sediments, and therefore it stayed in the atmosphere returns earned over a given time period are called realized returns. historical data on realized returns is often used to estimate future results. analysts across companies use realized stock returns to estimate the risk of a stock. five years of realized returns for celestial crane cosmetics inc. (crane cosmetics) are given in the following table: Need help finding the conclusion to this problem and the theorem that supports.the theorems to choose from, base angles theorem, exterior angle theorem and, SAS Read these lines: thus fortune with a light turn of her wheel brings men from joy to sorrow. Which theme from the story is best represented in these lines?. you are working on an ipv6 address 2608:fe10:1:aa:002:50ff:fe2b:e708. you want to create subnets within this ip address. which of the following will you choose to alter when creating subnets for this address? The purpose of post hoc tests following an Analysis of Variance is... a. ...to address the question of which groups differ from one another. b. ...to address the question of whether there are any differences at all between groups. What is an equation of the line that passes through the points (2, 2) and (1, -2) 3 resistance 5 , 7 , 9 are connected in parallel with a power supply of 9 volt. Calculate its equivalent resistance current passing through each resistance and total current passing through the circuit. 1. If a patient care technician uses jargon to describe what aspecimen looks like with a patient, the patient should knowwhat it means.a. Trueb. False Which of the following characteristics are true about sharks? (Mark all that apply.)a. Receptors along the shark's sides are sensitive to touch, vibration, currents, sound, and pressure.b. Sharkskin is extremely abrasive, like sandpaper.c. Sharks have an acute sense of smell. 5.33 stopping distance. (a) if the coefficient of kinetic friction between tires and dry pavement is 0.80, what is the shortest distance in which you can stop an automobile by locking the brakes when traveling at 28.7 m/s ? Why i it important for Anne and her family to challenge their mind? From The diary of a young girl DUE SOON- Please HelpWILL GIVE BRAINLIEST(02.02 HC) The table below shows the habitat and foraging habits of two fish species in a marine ecosystem. Fish Species Data Species Habitat Eating Habits A Up to 1,000 meters deep Eats large fish B Deeper than 1,000 meters Eats shrimps An invasive species that lives in habitats up to 1,000 meters deep and feeds on small fish only was introduced in this ecosystem. What would be the likely impact? Species As population will decrease due to limited space. Species Bs population will decrease due to limited space. The population of species A will decrease due to limited prey. The population of species B will decrease due to limited prey. green company, an accrual basis taxpayer, provides business-consulting services. clients generally pay a retainer at the beginning of a 12-month period. this entitles the client to no more than 40 hours of services. once the client has received 40 hours of services, green charges $500 per hour. green company allocates the retainer to income based on the number of hours worked on the contract. at the end of 2021, the company reported as a liability in its financial statements $50,000 of unearned revenues from these contracts. the company also reported $10,000 in unearned rent income received in 2021 from excess office space leased to other companies. considering only this information, how much gross income must green report in 2022 for tax purposes? How to find the x and The value of a car depreciates over time. The table shows the value of a car over aperiod of time.2A- What kind of function does the scatter plot model? *quadraticexponentialnone of these how can an object have the same speed and mass but change its momentum? What do you have to remember about the signs of the numbers in factored form of a quadratic compared to the signs of the actual x-intercepts on the graph? marcus wants to include the month of the year in the analysis as categories. how many dummy variables will be needed? PLEASE HELPPP!!The pair of points (-6, y) and (4,8) lie on a line with a slope of 5/2. Set up and solve for the missing y-value using the slope formula. Show all work to receive credit.