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Chemical Reactions

Authored by Deborah Amick

Science

8th Grade

NGSS covered

Used 10+ times

Chemical Reactions
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32 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a ___________change, a substance changes into a different substance.

Physical
Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these is NOT a sign that a chemical change has occurred?

A change in shape

An unexpected color change

A temperature change

The formation of a precipitate

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many Al atoms are in this compound?         4Al2O3

2
8
6
4

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

a copper penny turning greenish after a few years.

Chemical Change
Physical Change

Tags

NGSS.MS-PS1-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

An gel ice pack getting cold after you put it in the freezer for an hour.

Chemical Change
Physical Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Provides evidence that a chemical reaction has occurred. 

dissolving 
melting
formation of a gas
bending

Tags

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Describes the number of atoms in a compound of each element. 

coefficient 
superscript 
subscript 
SI unit 

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