
reaction stoichiometry
Authored by Kim Gross-Cain
Chemistry
10th - 12th Grade
NGSS covered
Used 17+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2H2 + O2 → 2H2O
How many moles of oxygen are consumed if 8 moles H2 are used?
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
5 mins • 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?
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the following equation:
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2NaClO3 (s) → 2NaCl (s) + 3O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?
NaClO3 = 106.44 g/mol ; O2 = 32.00 g/mol
256 g of O2
576 g of O2
288 g of O2
384 g of O2
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
From the reaction: B2H6 + 3O2 -->2 HBO2 + 2 H2O
What mass of O2 will be needed to burn 36.1 g of B2H6?
B2H6 = 27.68 g/mol
13.8 g O2
3.91 mol of O2
125 g O2
41.7 g O2
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2Na + 2H2O → 2NaOH+ H2
How many grams of hydrogen are produced if 120 g of Na are available?
Tags
NGSS.HS-PS1-7
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