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Elements, Compounds And MIxtures #2
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Water is an example of
A
compound
B
atom
C
element
D
mixture
2) Hydrogen is an example of
A
element
B
heterogeneous
C
homogeneous
D
mixture
3) Air is an example of
A
homogeneous mixture
B
heterogeneous mixture
C
compound
D
atom
4) The atoms of the element nitrogen will look
A
exactly the same every time
B
like the atoms of oxygen sometimes
C
upside down when in mountain air
D
different in various places on earth
5) All matter has
A
two or more atoms combined
B
a positive charge
C
can be a solid and liquid
D
mass and takes up space
6) One element is composed of
A
one kind of atom
B
many compounds
C
three of the same molecules
D
two different atoms
7) The two substances in a compound like H2O
A
combine to make a new substance
B
keep their old identities
C
change into two new elements
D
become a mixture
8) How many atoms are in the compound CO2
A
3
B
4
C
1
D
2
9) Trail Mix is an example of
A
a heterogeneous mixture
B
a homogeneous mixture
C
an element
D
a compound
10) Mixtures are
A
combined chemically
B
not touching at all
C
combined into a new substance
D
combined physically
*select an answer for all questions
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