Unit 5 Review

Unit 5 Review

10th - 12th Grade

50 Qs

quiz-placeholder

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Unit 5 Review

Unit 5 Review

Assessment

Quiz

Chemistry

10th - 12th Grade

Hard

NGSS
HS-PS1-7, MS-PS1-5, HS-PS1-1

Standards-aligned

Created by

Brianna Alexander

Used 35+ times

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50 questions

Show all answers

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

823.8g/mol
357.5 g/mol
455.6g/mol
86.3g/mol

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?

2.5
6
12
15

Tags

NGSS.HS-PS1-7

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