Chemical Reaction

Chemical Reaction

7th Grade

12 Qs

quiz-placeholder

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Chemical Reaction

Chemical Reaction

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

NGSS
MS-PS1-5, MS-PS1-2, MS-PS1-4

+2

Standards-aligned

Created by

Charles Martinez

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The mathematical representation that describes what happens in a chemical reaction is known as 

chemical equation
reactant
chemical reaction
product

Tags

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does the Law of Conservation of Mass state?

Matter cannot be created or destroyed in a chemical reaction.
Matter can only be lost in a chemical reaction.
Matter can only be gained in a chemical reaction.
Matter can be created or destroyed in a chemical reaction. 

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the left part of a chemical equation called?
H2 + O → H2O

Reactants
Products 
Yields 
Chemical Equation 

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the right part of a chemical equation called?
H2 + O H2O

Reactants
Products 
Yields 
Chemical Equation 

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

You know a chemical reaction has occurred if

there is a precipitate.

there is a color change.

there is a temperature change.

All of these answers are evidence.

Tags

NGSS.MS-PS1-2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

When materials combine to form new compounds it is a chemical change. Which example is a chemical change?

baking powder fizzing
water boiling
ice melting
sugar cube dissolving

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A reaction that gives off heat to its surroundings is...

exothermic
endothermic
endergonic
none of these

Tags

NGSS.MS-PS1-4

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