Review on Stoichiometry

Quiz
•
Science
•
11th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does the coefficient in front of reactants and products represent in balanced equations?
number of moles
type of reaction
position on the periodic table
number of compounds
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
is defined as the relationship between reactants and products in a chemical reaction is called what?
mole ratio
stoichiometry
molar mass
chemical equation
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first thing you must do to solve a stoichiometry problem?
Write a Balanced Equation
Panic
Write an Unbalanced Equation
Ask for help
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False. You must convert grams to moles using molar mass to do stoichiometry.
True
False
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?
3mol Mg / 2 mol Fe
2 mol Mg/ 3 mol Fe
1 mol Fe/ 2 mol Fe
3 mol MgO / 2 mol Fe
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction 2 H2 + O2 → 2 H2O what is the mole ratio of oxygen to water
1/2
2/1
3/4
4/3
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the equation 2 Al₂O₃ --> 4 Al + 3 O₂, what is the mole ratio of aluminum to oxygen (aluminum is asked for, oxygen is given)?
10/6
3/4
4/3
2/3
Tags
NGSS.HS-PS1-7
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