Suppose 7.0 g of Compound A and 8.0 g of Compound B are consumed in a reaction that produces only one product, Compound C.
Calculate the theoretical yield of C.
Round your answer to the nearest 0.1 g.
Suppose 12.6 g of C are actually isolated at the end of the
reaction.
What is the percent yield of Compound C?
Round your answer to the nearest whole percent.

Answer:

Atoms

Explanation:

Atoms are made of extremely tiny particles called protons, neutrons, and electrons. Protons and neutrons are in the center of the atom, making up the nucleus. Electrons surround the nucleus. Protons have a positive charge.

Answer:

hola comoe stas

Explanation:

gracias x los puntos

Answer:

a, d and e. are true.

Explanation:

The reaction that occurs is:

Na2CO3(aq) + CaCl2(aq) → CaCO3(s) + 2NaCl

In ideal conditions, the percent yield of the reaction must be 100%. All explanations about why the student could not collect all precipitate are right:

a. The combined reactants were not stirred before filtering the precipitate. Not stirring could not promote all the reaction. TRUE.

b. The student did not completely dry the precipitate before weighing it. If the student don't dry the precipitate, the mass of precipitate must be higher producing a percent yield > 100%. FALSE.

c. The precipitate was not washed prior to drying. Produce more mass. FALSE.

d. A rubber policeman was not used to scrape precipitate from the beaker. If the student doesn't collect all the precipitate the percent yield could be < 100%.. TRUE.

e. The filter paper was not wetted with water prior to filtering the precipitate. TRUE. If you don't wet the filter paper you can lose a part of precipitate from the walls of this one.

compared to a metal with an ASTM grain size of 3, a material with a grain size number of 7 would have finer crystals and would be stronger.

The ASTM (American Society for Testing and Materials) grain size number is a measure of the average size of the grains in a metal. A lower number indicates a material with larger grains, while a higher number indicates smaller grains. The size of the grains affects the mechanical properties of the metal, such as strength, toughness, and ductility. In general, metals with finer grain sizes have better mechanical properties, such as increased strength and improved ductility. This is because smaller grains result in a more uniform microstructure and reduced defects, leading to improved mechanical performance. Therefore, a metal with an ASTM grain size of 7 would be expected to have finer crystals and to be stronger compared to a metal with an ASTM grain size of 3.

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Answer:

class i believe

Explanation:

Some organic acids are their sources are given below:

Organic acids are acids that are obtained from organic sources or living organisms.

Organic acids unlike inorganic acids are usually weak acids.

Organic acids are important in living organisms and play several roles such as in proteins or in lipids.

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Answer:

the answer is A. cooking the eggs

Answer:

A. Cooking the eggs

Explanation:

Cooking the eggs is a chemical change because it's a permanent change. There's no way to get the eggs back in its original form as an egg. Breaking the egg, stirring the egg, or even putting spices on the eggs are all examples of physical changes because they don't change the eggs' chemical composition. They only change its appearance.

There are 3.44 x 10^{22} particles in 0.057 moles of lithium bromide.

The lithium bromide formula also known as the lithium monobromide formula or Bromo lithium formula is explored. It is a counterion bromide-based salt of lithium.

we have to use Avogadro's constant,

Avogadro's constant, is approximately equal to 6.022 x 10^{22} particles per mole.

we can use the following formula:

number of particles = moles x Avogadro's constant

Substitute the values,

number of particles = 0.057 moles x 6.022 x 10^{23} particles/mol

Simplifying the equation

number of particles = 3.44 x 10^{22} particles

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Answer:

Two oxygen atoms and one carbon atom.

Answer:

1.674 x 10^-23 grams

Explanation:

Hydrogen-1 is called Protium

wikipedia

atomic mass of Protium is 1.00794 amu

sciencedirectcom

atomic mass of 10 Protiums is 10.0794 amu

10.0794 amu in grams is

1.6737236x10^-23 grams

Answer:

404.47692 g

Explanation:

Na₂CO₃ + Ca(NO₃)₂ ⇒ CaCO₃ + 2NaNO₃

From the coefficients in the balanced chemical equation, we see that the ratio of Ca(NO₃)₂ and 2NaNO₃ is 1:2, so every 1 mol of Ca(NO₃)₂ produces 2 mols of 2NaNO₃.

(4.93 mol NaNO₃)(\(\frac{Ca(NO3)2}{2NaNO3}\)) = 2.465 mol Ca(NO₃)₂

Then, we need to convert from moles to grams, since we are asked to find the mass of Ca(NO₃)₂. To do this, we need to look up the molar mass of Ca(NO₃)₂, which is 164.088 g/mol.

(2.465 mol Ca(NO₃)₂ ) (  \(\frac{164.088 g}{1 mol}\)) =  404.47692 g

Thus,  404.47692 grams of Ca(NO₃)₂ is needed to produce 4.93 mol of 2NaNO₃.

When carbonate sediments are subjected to thermal or regional metamorphism, the CO2 cannot often escape and the carbonate minerals simply recrystallize; calcite and dolomite commonly form marble. Carbonate minerals can therefore be common in some metamorphic rocks.

Answer:

Mixture.

Explanation:

Hello,

In this case, when blending we are continuously sliding the substances until we obtain small particles that when do not chemically but physically combine we say they are forming a mixture. Nevertheless, when they chemically combine they form a chemical compound due to the formation of bonds between them.

Regards.

Answer:

I'd say it's the first option, A study that follows people for an extended period of time to see if they develop a disease or condition.

Explanation:

Answer:

option B = 0.410 g

Explanation:

hope this helps have hope i get brainliest

Answer: 3.5 moles of hydrogen gas will be produced.

Explanation:

The balanced chemical equation is:

\(2Fe+6HCl\rightarrow 2FeCl_3+3H_2\)

As HCl gets completely used up, \(HCl\) is the limiting reagent.

According to stoichiometry :

6 moles of \(HCl\) produces =  3 moles of \(H_2\)

Thus 7.0 moles of  \(HCl\) produces=\(\frac{3}{6}\times 7.0=3.5moles\)  of \(H_2\)

 Thus 3.5 moles of hydrogen gas will be produced.

Answer:

Loss of viable land, erosion, and other factors decrease the ability of farmers to use land.

Answer:

12 moles of oxygen gas

Explanation:

12 moles of oxygen gas would be needed to completely burn 8 moles of hydrogen sulfide.

The mole ratio of a reaction is a ratio showing the how moles of reactants combine to form products or the ratio of moles if products formed to the moles of reactants used up.

The balanced equation of the reaction is given below:

\(2H_{2}S + 3O_{2}\rightarrow 2H_{2}O + SO_{2}\)

3 moles of oxygen reacts completely with 2 moles of hydrogen sulphide.

8 moles of hydrogen sulphide will require 3 × 8/2 moles of oxygen = 12 moles of oxygen.

Therefore, 12 moles of moles of oxygen gas would be needed to completely burn 8 moles of hydrogen sulfide.

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Answer:

+3

Explanation:

oxidation state of hydrogen in NaBH4 is -1 because here hydrogen acts as hydride. thus the oxidation state od boron in sodium boron hydride is (+3)

The mass percent of Cl in SiCl2I2 is 20.13%.

The chemical formula of SiCl2I2 can be broken down into its constituent elements, Si, Cl, and I. The total mass of the compound is the sum of the masses of these elements. Then, we can find the mass percentage of chlorine in SiCl2I2.
The mass of Si is 28.09 g/mol, the mass of Cl is 35.45 g/mol, and the mass of I is 126.9 g/mol. Therefore, the molar mass of SiCl2I2 is:
Molar mass of SiCl2I2 = (28.09 g/mol) + 2(35.45 g/mol) + 2(126.9 g/mol)
= 352.79 g/mol
To find the mass percentage of chlorine in SiCl2I2, we need to determine the mass of chlorine in the compound. There are two chlorine atoms in the molecule, so the mass of chlorine is:
Mass of Cl = 2(35.45 g/mol) = 70.9 g/mol
Now, we can calculate the mass percentage of Cl in SiCl2I2:
Mass percentage of Cl = (Mass of Cl / Molar mass of SiCl2I2) × 100%
= (70.9 g/mol / 352.79 g/mol) × 100%
= 20.13%
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The ion that could bond with a calcium ion (Ca2+) to form a neutral ionic compound is option A. Cl-.

This is because the calcium ion has a +2 charge, and the chloride ion (Cl-) has a -1 charge. When these two ions bond together, they form the compound CaCl2, which has a net charge of zero and is therefore neutral.

In order for an ionic compound to be neutral, the charges of the ions must cancel each other out. Therefore, the calcium ion needs to bond with an ion that has a -2 charge in order to form a neutral compound. The chloride ion is the only ion listed that has a -1 charge, and therefore it is the only one that can bond with the calcium ion to form a neutral compound.

So the correct answer is option A. Cl-.

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Answer: Trail 2

Explanation: Because it has a pressure of 1 atm

Answer:

3 Both mass and charge are conserved.

Explanation:

The equation of the reaction is;

Cu(s) + 2Ag+ (aq) → Cu2+ (aq)  + 2Ag(s)

A redox reaction is an acronym for oxidation-reduction reaction. This refers to a reaction in which the oxidation number of one specie is increased while the oxidation number of the other specie is decreased.

This means that one specie looses electrons while the other specie gains electrons. Here, Cu(s) looses electrons while Ag+(aq) gains electrons from left to right in the reaction.

In a redox reaction, both mass and charge are conserved. This means that the total mass and charge on the reactants side is the same as the total mass and charge on the products side.

Answer:

I believe it is 3.

Explanation:

because the earth is constantly shifting.

Answer:

in this model is the correct organization of an atomic model of an element is C