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