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Solutions And Mixtures
Test Description: 8th Grade Science, CA
Instructions: Answer all questions to get your test result.
1) Which choice is a homogeneous mixture?
A
coffee
B
hot chocolate with marshmallows
C
oatmeal
D
trail mix
2) Which type of molecule is water
A
ionic
B
non-polar
C
precipitate
D
polar
3) The substance that is used to dissolve the solute is the:
A
reactant
B
solvent
C
solution
D
water
4) There are two containers of Kool-aid. One has 3 tablespoons of Kool-aid mix in 1 quart. One has 3 tablespoons of mix in 2 quarts. Which is more concentrated?
A
They are even
B
You can't tell since they are different sizes
C
The 3 tablespoons in 1 quart
D
The 3 tablespoons in 2 quarts
5) Which is an example of a heterogeneous mixture?
A
lemonade
B
vegetable soup
C
gatorade
D
tea
6) Homogeneous mixtures are:
A
have visibly different particles
B
always liquids
C
combined chemically
D
the same throughout
7) Heterogeneous mixtures are:
A
solutions
B
the same throughout
C
those where the substances do not spread out evenly.
D
always solids
8) If a solution is unsaturated:
A
you can dissolve more solute in it
B
it has no solute in it
C
it is lower in calories
D
it is concentrated
9) An alloy is a
A
homogeneous mixture
B
a metal compound
C
heterogeneous mixture
D
a solid solution
10) Water is an excellent solvent because
A
it is clear.
B
its slightly acidic.
C
its a polar molecule that attracts other molecules.
D
its electrons are shared equally.
*select an answer for all questions
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