4. Chemical Reactions

Stoichiometry — Quiz

Test your understanding of stoichiometry with 5 practice questions.

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Practice Questions

Question 1

What does stoichiometry mainly describe in chemistry?

Question 2

In a balanced equation, what do the coefficients represent?

Question 3

Why must a chemical equation be balanced before doing stoichiometry calculations?

Question 4

If the balanced equation is $2\,\mathrm{H_2} + \mathrm{O_2} \rightarrow 2\,\mathrm{H_2O}$, how many moles of water are produced from $1$ mole of $\mathrm{O_2}$, assuming excess $\mathrm{H_2}$?

Question 5

What is the first step in most stoichiometry problems?