Chemical Reactions Review
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The law of conservation of mass states that
The mass of a system (reaction) increases from beginning to end
The mass of a system (reaction) stays the same from beginning to end
The mass of a system (reaction) decreases from beginning to end
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is the product in the reaction shown?
Al2O3
Al
O2
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many Sodium (Na) are in 6NaCl?
1
12
6
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is a type of chemical reaction?
Melting
Combustion
Freezing
Evaporation
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A copper penny turning greenish after a few years is an example of ...
Chemical Change
Physical Change
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of reaction involves the breaking down of a substance into simpler substances?
Single Displacement Reaction
Double Displacement Reaction
Synthesis Reaction
Decomposition Reaction
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)
H3SO4
HSO4
H4S3O
H2O
Tags
NGSS.MS-PS1-1
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