Quiz about Stoichiometry Review

Question 1

Stoichiometry is based on the law of conservation of ___.

Accepted Answer

mass

Answer

charge

Answer

volume

Answer

reactants

Question 2

In a balanced chemical equation, the numbers of individual particles and the numbers of moles of particles are represented by the ___.

Accepted Answer

coefficients

Answer

chemical symbols

Answer

subscripts

Answer

molar masses

Question 3

Mole ratios for a reaction are obtained from the ___.

Accepted Answer

balanced chemical equation

Answer

total mass of products

Answer

periodic table

Answer

molar masses

Question 4

In the decomposition reaction of compound AB into substances A and B, what is the number of mole ratios that can be formed?

Accepted Answer

6

Answer

3

Answer

9

Answer

1

Question 5

Calculating the mass of a reactant and product from the number of moles of another product or reactant in a chemical equation is an example of a ___.

Accepted Answer

mole-to-mass conversion

Answer

mass-to-mass conversion

Answer

mole-to-mole conversion

Answer

mass-to-mole conversion

Question 6

Limiting a reactant is often accomplished by ___.

Accepted Answer

using an excess of another reactant

Answer

overcoming conservation of mass

Answer

slowing down a chemical reaction

Answer

producing excess product

Question 7

In a reaction, substances A and B form substance C. If the actual mole ratio of substance B to substance A is less than the balanced equation mole ratio of substance B to substance A, substance B is the ___.

Accepted Answer

limiting reactant

Answer

product

Answer

actual yield

Answer

excess reactant

Question 8

Percent yield of a product is a measure of a reaction's ___.

Accepted Answer

efficiency

Answer

heat production

Answer

spontaneity

Answer

rate

Question 9

The actual yield of a product is ___.

Accepted Answer

measured experimentally

Answer

independent of the reactants

Answer

the same as its theoretical

Answer

a negative value

Stoichiometry Review

22 questions

The reactant that limits the extent of the reaction is called the ___.

The ___ of a chemical reaction is the amount of product produced by the reaction in reality.

A(n) ___ is a ratio between the number of moles of any two substances in a balanced chemical equation.

If a portion of reactant remains after the reaction is completed, then that reactant is said to be the ___.

The ___ is the maximum amount of product that can be produced from a given amount of reactant.

___ is the study of the numerical relationships between products and reactants in a chemical reaction.

The ___ of a reaction gives the ratio of the actual yield to the theoretical yield.

The amount of product formed during a reaction depends on the ___.

Rarely does the actual yield of a reaction equal the ___.

Stoichiometry is based on the law of conservation of ___.

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