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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 glass filled with chocolate milk
B
a balloon filled with helium
C
a jar filled with salt water
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
mass of the liquid
B
boiling point of the liquid
C
color of the liquid
D
volume of the liquid
3) Which of the following is an example of the formation of a mixture?
A
hydrogen and oxygen reacting to produce water
B
sodium and chlorine forming table salt
C
rust forming on an iron nail
D
sugar crystals dissolving in water
4) Solutions can be separated by which of the following
A
filtration
B
separating by hand
C
evaporation
D
centrifuges
5) Solutes may come out of a solution that is
A
supersaturated
B
unsaturated
C
miscible
D
saturated
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 is more concentrated
B
One solution is made of only water
C
One solution has more solvent
D
One solution has more solute
8) When a solution is concentrated,
A
large amounts of solvent are dissolved in solute
B
large amounts of solute are dissolved in solvent
C
so much solute has been added that no more solute will dissolve
D
almost all the water has been taken out
9) How do you know a solution is saturated?
A
the volume of the solution will double
B
solute will collect on the bottom
C
the mass of the solution will double
D
the solution will become very thick
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
15 g
B
20 g
C
10 g
D
25 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
not be seen
B
are soluble
C
scatter light
D
settle out
13) What is often called the universal solvent?
A
oxygen
B
acid
C
nitrogen
D
water
14) Which of the following has a component that MUST be soluble?
A
mixture
B
suspension
C
heterogeneous mixture
D
solution
15) Electricity can be conducted through which of the following
A
water water
B
sugar water
C
salt water
D
air
*select an answer for all questions
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