Answer:
The answer is C.
Explanation:
i got a 100 on the test
The theoretical yield of carbon dioxide, CO₂ obtained from the reaction is 8.93 g
We'll begin by calculating the mass of citric acid, H₃C₆H₅O₇ that reacted and the mass of carbon dioxide, CO₂ produced from the balanced equation.
H₃C₆H₅O₇ + 3NaHCO₃ —> 3CO₂ + 3H₂O + Na₃C₆H₅O₇
Molar mass of H₃C₆H₅O₇ = (3×1) + (12×6) + (5×1) + (7×16) = 192 g/mol
Mass of H₃C₆H₅O₇ from the balanced equation = 1 × 192 = 192 g
Molar mass of CO₂ = 12 + (2 × 16) = 44 g/mol
Mass of CO₂ from the balanced equation = 3 × 44 = 132 g
From the balanced equation above,
192 g of H₃C₆H₅O₇ reacted to produce 132 g of CO₂
Finally, we shall determine the theoretical yield of CO₂. This can be obtained as follow:
From the balanced equation above,
192 g of H₃C₆H₅O₇ reacted to produce 132 g of CO₂.
Therefore,
13 g of H₃C₆H₅O₇ will react to produce = (13 × 132) / 192 = 8.93 g of CO₂.
Thus, the theoretical yield of CO₂ is 8.93 g
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Are bath bombs pure substances or mixtures
Answer:
Yes.
Explanation:
Bath bombs are usually made from three key ingredients: baking soda, citric acid and cornstarch, said Frankie Wood-Black, an instructor in chemistry at Northern Oklahoma College and an experienced bath-bomb maker. Often, bath bombs also include dyes and perfumes, and sometimes they have epsom salt.
Answer: yes
Explanation:
CORRECT ANSWER WILL BE MARKED BRAINIEST
predict the chemical formula that results when the following pairs of ions combine to form an ionic bond.
1. K+1 and S-2
2. Pb+4 and N-3
Gold's natural state has a definite shape and a definite volume. What is gold's natural state(s)?
O solid
liquid
ОООО
solid or gas
O liquid or gas
Answer:
Solid
Explanation:
an inexperienced student adds a solution of catalytic h2so4 and water to the alkene shown below, expecting to produce 1-cyclobutylethan-1-ol.
The rearrangement produces a more stable tertiary carbocation and the unexpected product.
In the image shown, the substrate is 1-cyclobutylethene. The attack of H2SO4 and water will lead to the conversion of the alkene to an alkanol. Two possible products may be obtained with one being greater than the other.
The unexpected product (Shown in the image attached) is obtained due to rearrangement of the carbocation intermediate. The rearrangement produces a more stable tertiary carbocation and the unexpected product.
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Write the balanced chemical equation for the following reaction. Also, classify the
reaction as sythesis, decomposition, single replacement, double replacement, or combustion.
aluminum sulfate + barium chloride —> aluminum chloride + barium sulfate
Answer:
Reaction: Al2(SO4)3 + 3BaCl2 --> 2AlCl3 + 3BaSO4
Type: Double Replacement
Explanation:
1.) First you need to understand what the different reactions are
a.) Synthesis: is a reaction where two or more substances will combine with each other to make one product.
Ex: A + B → AB
b.) Decomposition: when one compound breaks down into two or more substances. (Opposite of synthesis)
Ex: AB → A + B
c.) Single Replacement: when one element replaces another one in a reaction
Ex: A + BC → AC + B
d.) Double Replacement: when the positively charged cations and negatively charged anions of the reactants trade places. Normally this will be the two outer elements combining and the two inner ones combining.
Ex: AB + CD → AD + CB
e.) Combustion: when a substance reacts with oxygen gas and releases energy as light and heat.
Ex: CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)
2.) From there you can write out the formula of the different reactants and products and balance the equation.
The minimum collision energy between two molecules in order for them to react is called A activation energy. B dispersal energy C spontaneous energy D transition energy.
A: activation energy
hope i helped :D
Assume trilobites went extinct 248 million years ago.
If a trilobite is found in a rock layer, what do you
know about the age of that rock layer?
Answer:
the rock layer is at least 248 million years old
Explore
How many electrons are there in the N shell of an element?
[tex] \huge \mathbb \pink{ANSWER:}[/tex]
2,5 the elctrons arw there in the N shell of an element.Explanation:
Hope it helps ^•^
Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons
Help please!!!!!!!!!!!!!!!!!!!!…
Answer:
i honestly dont know how this is showing up on my thing i am 13
Explanation:
sorry i dont know at all
During ionization, metals lose electron, this change is called?
Ans
This is called oxidation
Explanation:
the oxidation number of a metal ion is more than the oxidation number of metal atom
A student group is involved in a restoration study of a nearby disturbed area. They decide to collect six soil samples and analyze them for carbon (C) and nitrogen (N). Two of the samples are found to be very high in C and N, but the other four samples are low in both. The students also notice that the color of the two soil samples that are high in C and N is very dark.
Requried:
What is the most likely explanation of the data?
The very dark soils samples that contain the highest amounts of carbon and nitrogen is loamy soil.
Soil is the outermost portion of the earth's crust on which plants grow. The appearance of a soil sample gives an idea of the type and nature of the soil it is.
We are told that two out of the six soil samples gathered are very dark and contains an enormous amount of carbon and nitrogen. These two must be samples of loamy soil.
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Describe how to do an experiment to show that when you dissolve salt in water the salt is still there.
Answer:
When salt is dissolved in water, the particles of salt get into the spaces between particles of water and starts dissolving and disappear.
Explanation:
In Experiment 1, what volume did the propane gas occupy in the Erlenmeyer flask before the addition of any water?
This question is mentioning an experiment that is not being described about the volume of the propane gas in an Erlenmeyer before the addition of water.
In this case, since no information is given, it is possible to propose a suggested procedure of how to figure it out via gas laws, specifically, the ideal gas one, since no change is decribed before the addition of water:
[tex]PV=nRT[/tex]
Thus, you can solve for the volume, by dividing both sides by the pressure, so that you will get:
[tex]V=\frac{nRT}{P}[/tex]
Now, to ensure a correct calculation, make sure you have the moles (divide by the molar mass of propane, 44,1 g/mol, if you were given the grams), the temperature in K (add 273.15 if you have degree Celsius), the ideas gas constant as 0.08206 and the pressure in atm, in order to have consistent units.
If you need the volume in milliliters, you will need to multiply the previous answer by 1000 in order to perform the appropriate conversion.
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https://brainly.com/question/15268548https://brainly.com/question/16521007Why do we fill balloons
with helium gas instead
of oxygen gas?
Answer:
Helium is less dense. Because helium is lighter than air, a helium balloon rises, just as an air bubble rises in more dense water
Explanation:
Also why not. It just is.
Answer:
This is due to the fact that helium has a lower density. A helium balloon rises like an air bubble in more dense water because helium is lighter than air. Another gas lighter than air is hydrogen, which is even lighter than helium.
Explanation:
The same quantity of each solute is added to water. Which solution will have the greatest number of H30+ ions at equilibrium?
(1 point)
O weak acid
O strong acid
O strong base
O weak base
Complete the sentence. When a base is added to water, hydrogen ions __________.
Answer:
Explanation:
Decreases
Answer:
Hydrogen ions decrease. It reduces the concentration of ions.
Explanation:
Q: Arrange the element according to the increase radius or size
1. Na, K, Cs Fr, Rb
2. Ca, Sr, Ba, Ra, Mg
Answer:
Refer to the periodic table to do this.
Explanation:
1. Na, K, Cs Fr, Rb
Sodium, Potassium, Cesium, Francium, Rubidium
3, 4, 6, 7, 5
Ascending order: Na, K, Rb, Cs, Fr
2. Ca, Sr, Ba, Ra, Mg
Calcium, Strontium, Barium, Radium, Magnesium
4, 5, 6, 7, 3
Ascending Order: Mg, Ca, Sr, Ba, Ra
When doing the electronic configuration of the elements, count how many number of divides it has. For example, Na(Sodium) has 11 electrons and it is divided like this: 2,8,1. So it divides into 3 parts so there will 3 shells for sodium.
Hopefully this helps!!
How do scientists analyze the TRAPPIST system?
Answer:
A team led by Michaël Gillon at the University of Liège in Belgium detected the planets using transit photometry with the Transiting Planets and Planetesimals Small Telescope (TRAPPIST) at the La Silla Observatory in Chile and the Observatoire de l'Oukaïmeden in Morocco.
Explanation:
This is just how the TRAPPIST system was discovered.
Here's the link about the information you need:
https://www.nasa.gov/press-release/nasa-telescope-reveals-largest-batch-of-earth-size-habitable-zone-planets-around
This element has an atomic number lower than aluminum and is in group 14
Answer:
that is impossible. the atomic number can only go up each group
A chemical reaction resulting in the transfer of electrons or hydrogen atoms from one molecule to another is called a(n) _______ reaction.
Answer:
Explanation:
Oxidation reaction
The kind of reaction involving the transfer of electrons or hydrogen away from a molecule is called oxidation.
In the same vein, the molecule that receives the electron or the hydrogen atom is said to be reduced. This means that oxidation cannot exist in isolation without reduction.
In other words, oxidation is defined as:
Loss of electronsLoss of hydrogen atomsGain of oxygen atomsGain in oxidation numberWhile reduction is defined as:
Gain of electronsGain of hydrogen atomLoss of oxygen atomReduction in oxidation numberMore on oxidation/reduction reactions can be found here: https://brainly.com/question/3867774
1. What is the specific heat of a substance that requires 270 J of energy to raise the temperature of 4.2 grams by 25°C?
Heat required is mcΔT=100×0.39×50=1950 J
Solve any question of Thermodynamics with:-
The specific heat of the substance that requires 270 J of energy to raise the temperature is 2.57 J/g⁰C.
Specific heat capacity of the substanceThe specific heat capacity of the substance is calculated as follows;
Q = mcΔФ
where;
c is the specific heat capacityc = Q/mΔФ
c = (270) / (4.2 x 25)
c = 2.57 J/g⁰C
Thus, the specific heat of the substance that requires 270 J of energy to raise the temperature is 2.57 J/g⁰C.
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#SPJ2
which would best be categorized as heat transfer by conduction?
a.) wearing a white shirt to stay cool on a summer day
b.) warming your body under the sun in summer
c.) feeling the heat from a lightbulb with your hand when touching the bulb
d.) feeling the heat from a light bulb while holding your hand from 6 inches away
Answer:
c.) feeling the heat from a lightbulb with your hand when touching the bulb
Explanation:
In heat transfer by conduction, feeling the heat from a lightbulb with your hand when touching the bulb will be categorised as the best condition.
According to Dalton, atoms cannot be SELECT ALL THAT APPLY a Created b Destroyed c Subdivided d Bonded
Answer:
The answer is subdivided,created or destroyed
calculate the number of moles of ethanol acid in 30 cm³of 1 mol dm-³ solution
Answer:
May I assume "ethanol acid is just ethanol (it has one slightly acidic H atom). If so, the molar mass is 46.02 g/mole.
Explanation:
We have 30 cm^3 [30 ml] of 1.0 M (1 mole/liter) [1 dm³ = 1 liter].
That is 1 mole/liter. 30 ml would contain (0.030 liter)*(1 mole/1 liter) = 0.03 moles.
sodium chloride is a compound of sodium and chlorine. which of these elements is the alkali metal and which is the halogen. why
Answer:
Chlorine is a halogen and sodium is an alkali metal.
Explanation:
Which list includes only bulk properties of matter?
boiling point, strength of electrical forces, vapor pressure
kinetic energy, strength of electrical forces, vapor pressure
boiling point, surface tension, vapor pressure
boiling point, kinetic energy, surface tension
The list which includes only bulk properties of matter is: C. boiling point, surface tension, vapor pressure.
What is matter?
Matter can be defined as anything that has mass and can occupy space.
Thus, any physical object or substance that is found on planet Earth is typically composed of matter.
The three (3) states of matter:
Since all matter are made up of atoms, they have a property of existing in three (3) distinct states and these include;
SolidGasLiquidA bulk property of matter refers to the property that affects matter as a whole and they are listed as follows:
1. Stress
2. Strain
3. Elasticity
4. Boiling point
5. Surface tension
6. Vapor pressure
In conclusion, the other list of properties are not a bulk property of matter.
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Beryllium (Be) has four electrons. Fluorine (F) has nine electrons. Which chemical formula shows the correct subscripts for the product of the reaction when beryllium and fluorine combine
Answer:
BeF2
Explanation:
The correct chemical formula for the product of the reaction when beryllium and fluorine combine is BF₂.
The valence electron of an atom determines how an atom goes into bonding.
Beryllium(Be) has 4 electron and has 2 valence electron. To fulfil the octet rule, it can easily give out this 2 electron during bonding.
Fluorine(F) has 9 electrons and 7 valency electrons. To fulfil the octet rule, it readily accepts a single electron.
The correct chemical formula for the product of the reaction when beryllium and fluorine combine is BF₂.
This means 1 atom of beryllium combines with 2 atoms of fluorine to form beryllium fluoride. The beryllium give its 2 valency electrons to the 2 atoms of fluorine. The 2 atoms of fluorine will now have a valency electron of 8 each. The octet rule has been fulfilled at this point.
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what do you mean by decimal number system
please give answer
If you begin with a saturated solution of sugar dissolved in water, and then you heat the solution, what type of solution will result
After beginning the experiment with a saturated solution, then increasing the heat, we will be left with an unsaturated solution.
To obtain the saturated solution, we must dissolve sugar in the water. We can say that the solution has become saturated when the solution is no longer able to dissolve more sugar. It has reached its capacity for the solute that it can dissolve in these conditions.
However, the temperature of a solution has an effect on the dissolving limit of the solution. That is, when a solution is heated it becomes able to dissolve more solute. Therefore, if we were to heat a saturated solution, it will be able to dissolve more solute and therefore will no longer be at its limit, meaning it is no longer a saturated solution. It has become unsaturated.
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A tiny crystal of a solid substance is added to an aqueous solution of the same substance. What would happen if the original solution was: 1) Super saturated 2) Unsaturated 3) Saturated.
Answer:
3.)Saturated
Explanation:
it was saturated and then turned super saturated