Stoichiometry Assessment
Quiz
•
Science
•
10th - 12th Grade
•
Medium
Standards-aligned
Jessica Burch
Used 4+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Given the equation:
2NaClO3 (s) → 2NaCl (s) + 3O2 (g)
When 2.00 moles of NaClO3 react, how many grams of O2 is produced?
56 g of O2
96 g of O2
64 g O2
32 g O2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
___KNO3 → ___KNO2 + ___O2
What coefficients are needed to balance the reaction?
2, 2, 1
2, 3, 2
1, 2, 2
1, 3, 1
3.
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
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
2Na + 2H2O → 2NaOH+ H2
How many grams of hydrogen are produced if 120 g of Na are available?
5.27 g
2.6 g
690 g
45 g
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the molar mass of (NH4)2CO3 ?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In the equation 2Al2O3 → 4Al + 3O2, what is the mole ratio of aluminum to oxygen?
10:6
3:4
4:3
2:3
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
CH4 + 2O2 → CO2 + 2H2O
24 grams of CH4 was added to the above reaction. Calculate the theoretical yield of CO2.
Tags
NGSS.HS-PS1-7
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