Review: Compounds, Mixtures and Reactions
Authored by Tharwat A
Chemistry
7th - 8th Grade
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101 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Air is a compound.
True
False
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compounds are made up of two or more atoms physically combined.
True
False
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The properties of the elements that make up a compound are usually very similar to the compound itself.
True
False
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many elements are represented in the compound?
Na2CO3
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is not a compound?
HCl
Cl
NaCl
CO2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Does this picture show a compound?
No
Yes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the substances below is a compound?
ink
air
oxygen
salt
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