
Unit 5 Review
Quiz
•
Chemistry
•
10th - 12th Grade
•
Hard
Standards-aligned
Brianna Alexander
Used 35+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the % composition of Potassium in the following copound KMnO4
14.8%
34.8%
24.7%
40.5%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much mass is in a 3.25-mole sample of NH4OH
10.8 g
34.0 g
114 g
35.1 g
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of water is present in CuSO4 * 5H2O
15%
22.5%
36%
50%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The empirical formula of a compound is CH2. its molecular mass is 70 g/mol. What is its molecular formula?
C2H4
C5H10
C6H12
C8H16
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A compound is 64.9% carbon, 13.5% hydrogen, and 21.6% oxygen. Its molecular mass is 74 g/mol. What is its molecular formula?
C4H10O
C5H10
C2H4O2
None of these
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the molar mass of Fe3(PO4)2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6CO2 + 6H2O --> C6H12O6 + 6O2
What is the total number of moles of water needed to make 2.5 moles of C6H12O6?
Tags
NGSS.HS-PS1-7
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