Answer:
A climograph is a graphical representation of the climate of a particular location over a period of time. It typically shows the average temperature and precipitation for a specific location over the course of a year, with the temperature plotted on the y-axis and the months of the year plotted on the x-axis.
The primary function of a climograph is to provide a visual representation of the climate of a particular location, which can be useful for understanding the weather patterns and temperature ranges that are typical for that location. Climographs can also be useful for comparing the climate of different locations, as they provide a convenient way to see how temperature and precipitation patterns differ from one place to another.
What happens to the reactivity when we move from left to right in the periodic table?
The metallic qualities drop and the non-metal characteristics rise as we progress from left to right, which results in a decrease inside the reactivity of such elements.
Metal reactivity is influenced by their propensity to lose electrons. The valence electrons could be simply eliminated as the atomic size grows, resulting in the formation of positive ions. As we proceed down the periodic table, the atomic size of metals gets bigger. The propensity to acquire electrons determines how reactive non-metals are.
Metal fosters strong down groups and declines across intervals from left to right. Indicators of nonmetallic properties rise from left to right and fall down groupings. Nonmetal reactivity goes up groups as well as down groups, increasing from left to right.
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S3o5 chemical compound
Answer:
Stainless SteelExplanation:
Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless SteelAnswer:
Sulfure 3
Oxygen 5
Explanation:
The S stands for Sulfure. And the stands for Oxygen. If you meant the name then its Trisulfur Pentoxide
hopefully that's what you meant.
7.92g of FeSO4 • 6H2O is equal to how many molecules?
7.92g of FeSO4 • 6H2O is equal to 1.55 x 10^23 molecules.
What is molecules?Molecules are the smallest units of matter that can exist by themselves. They are composed of two or more atoms that are held together by chemical bonds. Molecules can be found in the air we breathe, the water we drink, and the food we eat. They can also be found in living organisms, like plants and animals. Molecules can be made of a variety of different atoms, such as oxygen, carbon, nitrogen, and hydrogen. They also come in different shapes and sizes, depending on the types of atoms they are composed of.
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For each of the following molecules, would you expect greater solubility in water or in hexane?
a. toluene
b. sucrose (table sugar)
c. isobutene
d. ethylene glycol
Answer:
a
Explanation:
boiling point of 111ºC and hexane, with a boiling point of 69ºC, is 42ºC, making these two substances most easily separated
Question 6
Since the Moon has no living organisms, which method would be best for determining the age of a Moon rock?
А
radioactive dating
B
law of superposition
С
density of sediment collection
D
fossil and mineral comparison
Me
Radioactive dating measures the rate of decay of radioactive materials in rocks.
What is radioactive dating?Radiometric dating, radioactive dating, or radioisotope dating is a technique used to date things such as rocks or carbon that included trace radioactive contaminants when they were produced. Radioactive dating is a technique for dating rocks and minerals that makes use of radioactive isotopes. This approach is appropriate for igneous and metamorphic rocks that cannot be dated using the sedimentary stratigraphic correlation method. There are around 300 naturally occuring isotopes known. The underlying idea behind radiometric dating is that you can compute the age of a sample by comparing the presence of a radioactive isotope within it to its known abundance on Earth and its known half-life (rate of decay).
Here,
Radioactive dating determines the rate at which radioactive elements in rocks decay.
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select all that apply. please i will mark you brainliest.
Answer:
The 2nd option
Analysis of a 10.150 grams sample of a compound known to contain only phosphorus and oxygen indicates a phosphorus content of 4.433 grams. What is the empirical formula of this compound
A 10.150 grams sample of a compound containing only phosphorus and oxygen which indicates a phosphorus content of 4.433 grams has the empirical formula P₂O₅.
An Empirical formula is defined as the simplest whole number ratio of different atoms present in the molecule of a compound.
given,
mass of the unknown compound= 10.150 g
mass of phosphorus= 4.433 g
therefore, mass of oxygen
=mass of the unknown compound - mass of phosphorus
=10.150-4.433 g
=5.717 g
we know that
molar mass of oxygen = 16 g/mol
molar mass of phosphorus = 31 g/mol
number of moles of oxygen
=mass/molar mass
=5.717g/16gmol⁻¹
=0.357
number of moles of phosphorus
= mass/molar mass
= 4.433g/31gmol⁻¹
=0.143
Now, we will divide the moles by the smallest number of moles (0.143)
O= 0.357 / 0.143 =2.49≈ 2.5
P= 0.143 /0.143 = 1
now, we will multiply both numbers by 2 to get the simplest whole number ratio
O= 2.5×2= 5
P= 1×2= 2
Thus, the empirical formula is P₂O₅.
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Is an irony on the discrepancy between the expected result and actual result?
Irony of situation is a discrepancy between the expected result and actual results. Irony involves the perception that things are not what they are said to be or what they seem.
What is irony?One thing is expressed while another is meant in an ironic statement. For example, on a chilly, wet gray day, you would exclaim, "What a gorgeous day!" Alternatively, if you were suffering from a severe case of food sickness, you may respond, "Wow, I feel terrific today." "ffers points of view and ideas that are, at most, intriguing... However, it does not reach the truth." Ronagh and Souder are particularly concerned with scientific assertions that are not meant to be taken seriously.
Here,
The irony of the issue is the difference between the expected and actual results. Irony is the impression that things are not what they appear to be or what they are purported to be.
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Classify the reaction in each of the following equations.
a. BaCl2 (aq) + K2CrO4 (aq) → BaCrO4 (s) + 2KCl(aq)
b. Si(s) + 2Cl2 (g) → SiCl4 (l)
Answer:
a) Double replacement
b) Synthesis
Explanation:
a) For A, we have two ionic reactants that form two ionic products, where the anion (or cation) is swapped. This is a characteristic of a double replacement reaction.
b) For B, two elements, this time two elements, react together to form one product that's unlike the reactants. This is a characteristic of a synthesis reaction.
Why did the scientists only add earthworms to half of the pipes?
...
An annelid can regenerate to some extent after being split in half, and in some species, you may even get two worms. However, the common earthworm only regenerates from the tail end; Every time, the head end dies.
Can worms withstand being divided in half?The Washington Post reports that many earthworms can lose several segments from their head end and grow back, and that almost all worms can regrow their tails if they are amputated. However, for some worms, the likelihood of fully regenerating decreases with the number of segments removed.
What substance does the earthworm secrete to stabilize the tunnel walls?Coelomic fluid, which is secreted by many earthworms, makes it easier for them to move through the soil. This fluid forms a cement-like substance that lines the burrows of some burrowing species to prevent the walls from falling down.
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Consider the reaction H2 + I2 2HI for which K = 44.8 at a high temperature. If an equimolar mixture of reactants gives the concentration of the product to be 0.50 M at equilibrium, determine the equilibrium concentration of the hydrogen.
A) 1.1 * 10^–1 M
B) 7.5 * 10^–2 M
C) 3.7 *10^–2 M
D) 1.3 * 10^1 M
E) 5.6 * 10^–3 M
Equilibrium constant K= 44.8 for H₂ + I₂ → 2HI Equimolar reactants, HI = 0.50M, H₂ = 5.6×10⁻³ M. The correct option is e.
given equilibrium constant (K) and the equilibrium concentration of the product HI = 0.50M
balanced equation for the reaction
H₂ + I₂ → 2HI
K =[tex]\frac{HI^{2} }{[H_{2][I_{2}] } }[/tex]
K=44.8 and [HI]=0.50M
[H₂] = [tex]\frac{[HI]^{2} }{K}[/tex]
[H₂] =[tex]\frac{(0.50M)^{2} }{44.8}[/tex]
[H₂] ≈0.0056M
equilibrium concentration of hydrogen is 0.0056M sa per the given reaction.
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Which of the following alkenes cannot be converted into an alkyne by reacting it with bromine followed by an excess of sodium amide and then with water? X X II III DIVE, III and IV II &IX
Among the following alkenes (D) IV cannot be converted into an alkyne by reacting it with bromine followed by an excess of sodium amide and then with water.
An alkene must first be brominated by an addition reaction that produces a vicinal dibromide in order to transform it into an alkyne. All alkenes that have at least one double bond double substituted render them unsuitable for this method due to the requirement of this vicinal dibromide. This is so that the alkane can undergo a double elimination and produce an alkene, which needs at least one C-H and C-X bond. This hinders the conversion of molecule IV into an alkyne.
The dibromo alkane would change into the provided alkene by losing one unit of HBr if it were to react with bromine. However, the second beta-elimination cannot take place since there isn't hydrogen that is physically linked to the alkene carbon. So (D) IV is the right option.
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(05.04 LC)
How many moles of sulfuric acid (H₂SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH)?
2LIOH + H₂SO4 → Li2SO4 + 2H₂O
O 3.4 mol H₂SO4
O 6.8 mol H₂SO4
O 10.2 mol H₂SO4
O 13.6 mol H₂SO4
3.4 mole of H₂SO₄ are needed to react completely with 6.8 moles of lithium hydroxide (LiOH).
Is lithium hydroxide harmful to humans?When breathed in, lithium hydroxide monohydrate can have an impact on you. Lithium Hydroxide Monohydrate is a HIGHLY CORROSIVE CHEMICAL, and contact with it can cause serious skin irritation, eye damage, and burning. Lithium Hydroxide Monohydrate inhaled can irritate the throat and nose.
From the stichiometry of the reaction: 2 LiOH + H2SO4 → Li2SO4 + 2H2O
It is evident that 2.0 moles of LiOH reacts with 1.0 mole of H2SO4 to produce 1.0 mole of Li2SO4 and 2.0 moles of H2O.
Using cross multiplication:
1.0 mole of H2SO4 reacts completely with → 2.0 moles of LiOH
x mole of H2SO4 are needed to react completely with → 6.8 moles of LiOH
since number of moles of H2SO4 = ( 1.0 x 6.8 ) / (2.0) = 3.4 mole of H2SO4.
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N2+ 3H2= 2NH3+ energy Design criteria are the desired features of a design. Identify at least two criteria for the design of the ammonia-making process. Explain why these criteria are important.
Efficiency and safety are important criteria for the design of ammonia production processes, as they consume less energy and reliably produce large amounts of ammonia with minimal risk of accidents.
What are Design Criteria?Design criteria are specific characteristics or requirements that a design must meet in order to be successful. They provide clear and measurable criteria for evaluating designs, ensuring that the final product meets the needs and expectations of customers or users. Design criteria include not only technical specifications such as size, weight and materials, but also performance requirements such as safety, efficiency and durability. It can also include cost-related criteria such as manufacturing cost, ease of maintenance, and environmental aspects. The process of identifying and defining design criteria is an important step in the design process as it helps ensure that the final product meets user needs and is fit for purpose. This is important because as much of the reactants (nitrogen and hydrogen) as possible are converted to ammonia, thereby maximizing the yield of the process. This is important to make the process economical and produce large amounts of ammonia.
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How do you make the balanced equation of making ammonia?
__ N² + __ H² → __ NH³
(with steps to solve)
Answer:
1, 3, 2
Explanation:
1 mole of N^2 so you have 2 N.
3 mole of H^2 so you have 6 H.
2 mole NH^3 so you have 2 N and 6 H
2N + 6H = 2N + 6H
The limiting reactant, O2, forms 2.7 mol AI2O3. What mass of AI2O3 forms, knowing the molar mass of AI2O3 is 102 g/mol?
The limiting reactant, O₂, forms 2.7 mole Al₂O₃. Therefore, the mass of Al₂O₃ is 280 g.
What is mole ?The term mole (M) is defined as the amount of substance in a system which include as many elementary entities as there are atoms present in it. It is denoted by the symbol “mol”. The word mole is coming from the Latin word moles, which means “a mass”.
Molar Mass of Al₂O₃ = 101.96 g/mol
2.7 mole Al₂O₃ 101.96 g
------------------------ x -------------------
X 1 mole
= 280 g Al₂O₃
Thus, The limiting reactant, O₂, forms 2.7 mole Al₂O₃. Therefore, the mass of Al₂O₃ is 280 g.
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A student places a sample of a pure metal in a crucible and heats it strongly in air. Data from the experiment are given in the table above. The final mass was determined after the sample was cooled to room temperature. Which of the following statements related to the experiment is correct? (See attached table)
a.) The mass of the sample decreased, so physical changes occurred as the metal first melted and then boiled out of the crucible.
b.) The mass of the sample increased, so a chemical change occurred when bonds formed between the metal and another substance.
c.) There was nothing for the metal to react with, so only a physical change could have occurred.
d.) The sample was only heated, so neither a physical nor a chemical change occurred.
The correct answer is option A. The mass of the sample decreased, so physical changes occurred as the metal first melted and then boiled out of the crucible. The decrease in mass is a result of the metal melting and then vaporizing as it is heated.
What is physical changes?Physical changes refer to changes in the physical properties of a substance without altering its chemical composition. Examples of physical changes include melting, freezing, condensation, vaporization, sublimation, and physical state changes. Physical changes occur when a substance changes from one state of matter to another without a chemical reaction taking place.
This is an example of a physical change, as the material is changed from a solid to a liquid and then to a gas, but its chemical composition remains the same.
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what will the boiling point of CHCL3 be when the atmospheric pressure exerted on its surface is 101.325
The boiling point of CHCl₃ at a pressure of 101.325 kPa is 61.8°C (143.24°F).
What is boiling point?The boiling point is the temperature at which the pressure exerted on a liquid by the environment equals the pressure exerted by the vapor of the liquid. Under these conditions, the application of heat converts the liquid to vapor without raising the temperature.
At any temperature, the liquid partially vaporizes into the space above until the pressure exerted by the vapor reaches a characteristic value called the vapor pressure of the liquid at that temperature. As the temperature rises, the vapor pressure increases. At boiling point, vapor bubbles form in the liquid and rise to the surface.
The boiling point of a liquid changes along the pressure. The normal boiling point is the temperature at which the vapor pressure equals normal atmospheric pressure at sea level (760 mm [29.92 inches] of mercury). At sea level, water boils at 100°C (212°F).
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The complete question is as follows:
What will the boiling point of CHCL3 be when the atmospheric pressure exerted on its surface is 101.325 KPa?
How many neutrons are there in 14 gram of c14?
48×10²³ neutrons are there in 14 gram of C14
Any material that is totally composed of the same kinds of atoms is said to be an element. For instance, the element carbon is made up entirely of carbon atoms. The number of protons in an atom is indicated by the element's atomic number. The quantity of protons and electrons inside a neutral atom must match.
Neutron in 14 grams of C14 can be calculate as follows:
Mass number (or atomic weight) of ₆C¹⁴ is 14.
we know that Avogadro number =6×10²³
The number of neutrons in 12g of ₆C¹⁴ can be calculate by multiplying the number of neutron to the avogadro number
The total amount of protons and neutrons makes up mass. There will thus be = 14 - 6 = 8 neutrons.
neutron = (A−Z)×6×1023=(14−6)×6×10²³=48×10²³
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what happens to the speed of a sound wave from an underwater animal as the sound passes into the air above?
A. It stays the same
B. It falls to zero
C. It decreases
D. It increases
Can you describe , using full sentence , a car trip : o include distance , speed ,velocity and acceleration
Answer: Distance : The length of the space between two points.
Speed:The rate at which someone or something moves or operates or is able to move or operate.
Velocity: Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time.
Accerelation: Acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.
Explanation: Hope it helps!
Identify one advantage to each of the following models of electron configuration: Dot structures Arrow and line diagrams Written electron configurations Type in your answer below.
Simple Lewis dot structures make it easy to see how many valence electrons are present in an atom. Valence electrons are shown as dots surrounding the atom that are organized in pairs in Lewis dot formations.
Electron spin direction is displayed using arrow and line diagrams, along with each orbital. The electron configuration of atoms is shown using arrow and line diagrams or orbital diagrams, which use boxes and arrows to indicate the different orbitals and the pairing arrangement of electrons. This model has the benefit of displaying each orbital as well as the electrons' spin polarity.
Written electron configurations are concise and also depict how the electrons are distributed throughout the sublevels. The number of electrons in a specific sublevel is indicated by superscripts in written electron configuration notation. Written electronic configuration has the advantage of being more compact due to the removal of boxes and arrows. It also displays how electrons are distributed among sublevels.
The arrangement of electrons within an atom's orbitals, shells, and subshells is known as electron configuration.
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Answer:
Dot structures make it easy to count electrons and they show the number of electrons in each electron shell.
Arrow and line diagrams show the spin of electrons and show every orbital.
Written configurations require minimal space and show the distribution of electrons between subshells.
Explanation:
correct on edg 2023
Please help, would be greatly appreciated!
According to the stoichiometry of the given chemical equation 102.03 g of Al₂O₃ is formed from 54 g of aluminium.
What is stoichiometry?It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample. As per stoichiometry of the given chemical equation, 107.92 g aluminium gives 203.92 g Al₂O₃, thus 54 g aluminium will give 54×203.92/107.92=102.03 g.
Thus, 102.03 g of Al₂O₃ is formed from 54 g of aluminium.
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From the information on the table, determine the Mass of
the alloy, Volume of alloy, then the density of the alloy. Be
sure to follow the rules of significant figures in calculations.
Mass of Alloy _____g Bolume of the alloy ______mL. Density of the alloy: ____g/mL.
Answer:
mass of alloy=165.36g
volume of alloy=21.2ml
density of alloy=7.8g/ml
Predict the immediate effect of the following changes on the observed cell voltage, E.
H2(g) + PbCl2(s) <–> Pb(s) + 2HCl (aq)
Delta H standard rxn > 0
Match
a) Dissolve NaOH into solution
b) Increase the temperature
c) Increase the amount of PbCl2
d) Dilute the solution by adding H2O
i) Increased E
ii) Decreased E
iii) No change in E
Dissolve NaOH into the Solution will - Increased E
Increase the temperature - Increased E
Increase the amount of [tex]PbCl_{2}[/tex] - No change in E
Dilute the solution by adding [tex]H_{2}O[/tex] - Increased E
E= Voltage or the electromotive force generated in the cell
Dissolving NaOH will increase the conductivity and number of ions in the cell and Increases E . Adding water also increases the presence of hydrogen and hydroxide ions in the solution and Increases E.
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Show all your work and make sure to label all the numbers with the correct units if you do, I will give you brainly:
A: A sample of sulfuric acid has a mass of 15.0 g. How many molecules are in this sample?
B: How many moles of sulfuric acid are present in 45 g of this sample?
C: How much would a .750 mole sample of Ammonium sulfate weigh?
D: What is the mass percent of hydrogen in this sample?
What forces are acting on a meter stick?
Whenever the meter stick stood by itself, two forces were acting on it: some upward pressure of the fulcrum as well as the descending gravity force.
To demonstrate that the resultant force was zero when the metre stick has been in equilibrium, you must balance forces acting on it in the first section. To figure out the mass of the meter stick, you should balance the metre stick's weight against with a known weight inside the second section.
In the event that the ruler was balanced, the support which it is resting applies a force equal in strength to that of the weight's opposite force. Therefore, the ruler is being acted upon by its weight as well as the friction coefficient somewhere at support.
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Draw the structure for the product of the reaction between 2-butene and hydroiodic acid, HI.
The product of the reaction between 2-butene and hydroiodic acid (HI) is 2-iodobutane.
The reaction mechanism involves a nucleophilic substitution, where the iodine atom in HI acts as the nucleophile and attacks the carbon atom in the double bond of 2-butene. This results in the formation of a carbocation intermediate, which then undergoes a rearrangement to form 2-iodobutane. The overall reaction can be represented as follows: 2-butene + HI → 2-iodobutane + H2.Nucleophilic substitution is a type of chemical reaction in which a nucleophile (a molecule or ion with a lone pair of electrons) attacks an electron deficient species, known as an electrophile, to form a new chemical bond. In the process, the electrophile's original electron pair is replaced by the nucleophile. Nucleophilic substitution reactions can occur in a variety of ways, such as S N 1, S N 2, and S Ni (where i = 1, 2, or any other number).
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at ph=0, the net charge on a polypeptide will be negative.
a. true
b. false
False. A polypeptide will have a negative net charge at ph=0.
A polypeptide is what?A peptide is a small, chemically bound chain of amino acids, usually between two and fifty amino acids (called peptide bonds). A polypeptide is a longer (51 or more amino acids) chain of connected amino acids. One or more polypeptides are used to create the proteins that are produced inside of cells.
What role does the polypeptide play?Polypeptides. Proteins are created by joining several amino acids together to form polypeptides. The coupling of two or so more polypeptides results in the formation of proteins, after which they are folded into the appropriate shape.
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calculate the mass of .00566 mol of germanium, show work.