Unit 5 Chemical Reactions Review

Unit 5 Chemical Reactions Review

10th Grade

30 Qs

quiz-placeholder

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Unit 5 Chemical Reactions Review

Unit 5 Chemical Reactions Review

Assessment

Quiz

Chemistry

10th Grade

Easy

Created by

Marrissa Emerson

Used 1+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In the equation,          2Mg + O2 ---> 2MgO, which are the reactants?
Mg and O
MgO
Mg and MgO
O and MgO

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Balance this equation, Ca + H2O --> CaO + H2
Ca + 2H2O --> CaO + 2H2
2Ca + H2O --> CaO + H2
Its balanced as it is
Cannot be balanced

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What type of chemical reaction is this one?
Al(OH)3 --> Al2O3  + H2O
Decomposition
Combustion
Synthesis
Single Replacement 

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What type of chemical reaction is this one?
Ca + MgCl2 --> CaCl2 + Mg
Decomposition
Combustion
Synthesis
Single Replacement 

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What coefficients are needed to correctly balance the equation?
_Bi   +   _O2   >   _Bi2O3
3,2,3
2,3,2
4,3,2
none of these

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Why must chemical equations be balanced?

So that the equation doesn't explode

The reaction won't happen until it is balanced

Based on the Law of Conservation of Matter, matter cannot be created or destroyed.

Based on the Law of Conservation of Energy, energy cannot be created or destroyed.e

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image
The right side of the equation below is called the
products
reactants

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