11.1 Defining Stoichiometry

Quiz
•
Chemistry
•
10th - 12th Grade
•
Medium
Standards-aligned
TIM ANTEL
Used 96+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the scientific law that states that matter is not created or destroyed but only transformed in a chemical reaction?
law of conservation of energy
law of conservation of mass
law of conservation of momentum
law of gravity
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do the coefficients in the following balanced chemical equation mean?
2H2 + O2 → 2H2O
2 moles of hydrogen and 1 mole of oxygen in the reactants
2 moles of oxygen and 1 mole of hydrogen in the reactants
2 moles of oxygen and 1 mole of hydrogen in the products
2 moles of hydrogen and 1 mole of oxygen in the products
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the balanced chemical equation for the reaction between hydrochloric acid and calcium carbonate when the products of the reaction are calcium chloride, carbon dioxide, and water?
HCl + CaCl2 → CaCO3 + CO2 + H2O
HCl + CaCO3 → CaCl2 + CO2 + H2O
2HCl + CaCO3 → CaCl2 + CO2 + H2O
2HCl + CaCl2 → CaCO3 + CO2 + 2H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of Fe2O3 are present in 0.82 mol Fe2O3?
130 g
65 g
131 g
260 g
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance the following equation with the smallest whole-number coefficients. What is the coefficient for H2O in this equation?
PBr3 + H2O → H3PO3 + HBr
2
3
4
1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many moles of hydrogen are needed to react with 5 moles of nitrogen?
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many moles of water can be produced if 8 moles H2 are used?
Tags
NGSS.HS-PS1-7
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