Stoichiometry Checkpoint Review
10th Grade
•12 Qs
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Stoichiometry Checkpoint Review
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Standards-aligned
Roberto Rodriguez
Used 2+ times
FREE Resource
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 9 pts
What is the approximate percent composition of potassium in KHCO₃?
19%
24%
39%
61%
2.
MULTIPLE CHOICE QUESTION
2 mins • 9 pts
What is the percent composition of oxygen in Fe₂O₃ (molar mass = 160 g/mol)?
16%
30%
56%
70%
3.
MULTIPLE CHOICE QUESTION
2 mins • 9 pts
How many moles of O₂ contains exactly 3.01 × 10²³ molecules?
0.250 mole
0.500 mole
16.0 moles
32.0 moles
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
2 mins • 9 pts
What is the approximate total number of atoms in 1.0 mole of lithium?
3.0
6.9
1.0 × 10²³
6.0 × 10²³
Tags
NGSS.HS-PS1-7
5.
DRAG AND DROP QUESTION
2 mins • 8 pts
What is the molar mass of CO₂?
(a) (b)
6.
DRAG AND DROP QUESTION
2 mins • 8 pts
What is the mass for one mole of nitrogen gas? (N2)
(a) (b)
7.
MULTIPLE CHOICE QUESTION
2 mins • 8 pts
What is a mole in chemistry terms?
Tags
NGSS.HS-PS1-7
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