#1
What is the definition of stoichiometry?
The study of the balance of reactants and products in chemical reactions
ExplanationBalancing reactants and products in reactions
#2
Which law governs the conservation of mass in chemical reactions?
Law of Conservation of Mass
ExplanationEnsures mass remains constant in chemical reactions
#3
Which of the following is NOT a primary step in solving stoichiometry problems?
Calculating the enthalpy change of the reaction
ExplanationIrrelevant to stoichiometric calculations
#4
In a reaction, 2 moles of A react with 3 moles of B. What is the stoichiometric ratio of A to B?
3:2
ExplanationRatio of moles of A to moles of B in the reaction
#5
What is the mass percent of nitrogen in ammonium nitrate (NH4NO3)?
35.0%
ExplanationPercentage of nitrogen mass in the compound