Chemical Equations Stoichiometry
Authored by Charles Martinez
Chemistry
9th - 12th Grade
NGSS covered
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35 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
N2 + 3H2 → 2NH3
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
6
2
3
1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2H2 + O2 → 2H2O
How many moles of water can be produced if 8 moles H2 are used?
4 moles
8 moles
16 moles
2 moles
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Given the equation:
2NaClO3 (s) → 2NaCl (s) + 3O2 (g)
2.00 moles of NaClO3 will produce how many grams of O2? (mass of O2 = 32g/mol)
56 g of O2
96 g of O2
64 g O2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the mass of 2 moles of propane (C3H8)? (C=12 g/mol; H = 1 g/mol)
44 g
88 g
22 g
13 g
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molar mass of C6H12O6?
180.18
180.12
180.24
180.06
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?
256 g of O2
576 g of O2
288 g O2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molar mass of Mg(NO3)2
148.313g/mol
134.306g/mol
54.311g/mol
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