Chemical Reactions Unit Review
Authored by Lisa Thompson
Science
7th Grade
NGSS covered
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What kind of reaction is this:
4Fe + 3O2 → 2Fe2O3
Synthesis
Decomposition
Single Replacement
Double Replacement
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When balancing a chemical equation, ONLY the _________ can be changed ...
subscripts
coefficients
chemical formula
direction of the arrow
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the activity series of metals, which metal(s) will displace silver (Ag) from an acid?
only metals below silver (Ag)
only metals from Li to Na
any metal
only metals above silver (Ag)
Tags
NGSS.MS-PS1-2
4.
LABELING QUESTION
1 min • 2 pts
Label the parts of the reaction.
Products
Reactants
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
LABELING QUESTION
1 min • 1 pt
Identify which are the products and reactants
products
reactants
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
6.
LABELING QUESTION
1 min • 1 pt
Identify the products and reactants
reactants
products
Tags
NGSS.MS-PS1-2
7.
DRAG AND DROP QUESTION
1 min • 2 pts
Bubbles form when two or more substances are combined is a (a) (b)
Chemical Change
Physical Change
Tags
NGSS.MS-PS1-2
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