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Mixtures
Test Description: Inv 8 Mix and Solutions
Instructions: Answer all questions to get your test result.
1) Which is an example of container filled with pure substance
A
a jar filled with salt water
B
a glass filled with chocolate milk
C
a balloon filled with helium
D
a tire filled with air
2) A student is given an unknown clear liquid. What would be the most helpful to determine if the liquid is water
A
color of the liquid
B
boiling point of the liquid
C
volume of the liquid
D
mass of the liquid
3) Which of the following is an example of the formation of a mixture?
A
sugar crystals dissolving in water
B
rust forming on an iron nail
C
sodium and chlorine forming table salt
D
hydrogen and oxygen reacting to produce water
4) Solutions can be separated by which of the following
A
evaporation
B
filtration
C
centrifuges
D
separating by hand
5) Solutes may come out of a solution that is
A
supersaturated
B
miscible
C
saturated
D
unsaturated
6) Clyde mixed 25 grams of salt with water to make a 1000 mL solution. What is the percent solution
A
2.5 %
B
25 %
C
250 %
D
0.25 %
7) Two beakers with exactly 100 mL of solutions in them have different weights. Why would one solution weigh less?
A
One solution has more solvent
B
One solution has more solute
C
One solution is made of only water
D
One solution is more concentrated
8) When a solution is concentrated,
A
large amounts of solvent are dissolved in solute
B
so much solute has been added that no more solute will dissolve
C
large amounts of solute are dissolved in solvent
D
almost all the water has been taken out
9) How do you know a solution is saturated?
A
the mass of the solution will double
B
the volume of the solution will double
C
the solution will become very thick
D
solute will collect on the bottom
10) Julie created a solution by dissolving sugar in 480 mL of water. She then found that the mass of the solution was 500 g. How much sugar was dissolved in the solution?
A
20 g
B
10 g
C
25 g
D
15 g
11) Which of the following best describes chicken noodle soup?
A
heterogeneous mixture
B
suspension
C
homogeneous mixture
D
solution
12) The particles in a suspension can
A
are soluble
B
not be seen
C
settle out
D
scatter light
13) What is often called the universal solvent?
A
oxygen
B
nitrogen
C
water
D
acid
14) Which of the following has a component that MUST be soluble?
A
suspension
B
mixture
C
heterogeneous mixture
D
solution
15) Electricity can be conducted through which of the following
A
sugar water
B
salt water
C
water water
D
air
*select an answer for all questions
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