Unit 3.2 Test Review

Unit 3.2 Test Review

9th - 12th Grade

33 Qs

quiz-placeholder

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Unit 3.2 Test Review

Unit 3.2 Test Review

Assessment

Quiz

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Jaclyn Duhe

Used 1+ times

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33 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?

6.7 mol
1.0 mol
10.1 mol
4.5 mol

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the molar mass of C6H12O6?

180.18 g/mol

180.12 g/mol

180.24 g/mol

180.06 g/mol

3.

MULTIPLE CHOICE QUESTION

1 min • 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

4 moles Fe
6 moles Fe
9 moles Fe
2 moles Fe

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

N2 +  3H2 → 2NH3 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

6 mol H

2 mol H

3 mol H

1 mol H

5.

MULTIPLE CHOICE QUESTION

1 min • 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

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

B2H6 + 3O2 -->2 HBO2 + 2 H2O
 What mass of O2 will be needed to burn 36.1 g of B2H6?

13.8 g O2
3.86 mol of O2
124 g O2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4 Al + 3 O2 –> 2 Al2O How much aluminum would be needed to completely react with 45 grams of O2?

1.05 moles
3.75 moles
1.875 grams
1.875 moles

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