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WorksheetsClassification of Matter and Solutions
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
The color of a substance is a physical property.
a)
True
b)
False
2.
Distillation is a way to separate a mixture using the physical property of boiling point.
a)
True
b)
False
3.
The law of conservation of mass states that the mass of all substances before a chemical change equals the mass of all the substances after the change.
a)
True
b)
False
4.
Colloids are mixtures.
a)
True
b)
False
5.
The freezing of water is a chemical change.
a)
True
b)
False
6.
Chex Mix is a homogeneous mixture.
a)
True
b)
False
7.
Flammability is a chemical property.
a)
True
b)
False
8.
A suspension is a heterogeneous mixture.
a)
True
b)
False
9.
If a mixture scatters a beam of light and does not settle upon standing, it is a suspension.
a)
True
b)
False
10.
Three examples of physical change are ______________.
a)
boiling of water, bursting of a balloon, and crumpling a piece of paper
b)
burning of gasoline, rotting of an egg, and exploding fireworks
c)
freezing of water, evaporation of gasoline, and rusting a nail
d)
sawing of wood, crushing a can, and toasting a marshmallow
11.
When a log burns in a fire, __________.
a)
a physical change has occured
b)
mass is gained
c)
mass is lost
d)
new substances are formed
12.
_________ is another name for a homogeneous mixture.
a)
Liquid
b)
Solution
c)
Substance
d)
Suspension
13.
When two or more substances are combined so each substance can be separated by physical means, the result is a(n) _________.
a)
chemical change
b)
compound
c)
element
d)
mixture
14.
A __________ is NOT a mixture.
a)
colloid
b)
compound
c)
suspension
d)
solution
15.
The scattering of light by colloids is called ...
a)
air pollution
b)
conservation
c)
suspension
d)
the Tyndall effect
16.
Which word belongs in space I. of the chart? (Fig.17-1)
a)
mixture
b)
homogeneous
c)
matter
d)
compound
17.
Increasing temperature always increases the solubility of a solute in a solvent.
a)
True
b)
False
18.
The particles of any liquid are constantly moving.
a)
True
b)
False
19.
Particles of liquids and gases move much more freely than do particles of solids.
a)
True
b)
False
20.
Salad oil dissolves readily in vinegar.
a)
True
b)
False
21.
Non-polar materials have separated positive and negative areas.
a)
True
b)
False
22.
A drink advertised as having 10% fruit juice has a concentration of 100% by volume of the fruit juice.
a)
True
b)
False
23.
In a solution, the substance that is being dissolved is the __________.
a)
gas
b)
liquid
c)
solute
d)
solvent
24.
The oceans are an example of a(n) _________ solution.
a)
alloy
b)
gaseous
c)
liquid
d)
solid
25.
A substance that does NOT conduct an electric current when it forms a solution is a(n) __________.
a)
electrolyte
b)
nonelectrolyte
c)
liquid
d)
solid
26.
A solution that contains all of the solute it can hold at a given temperature is _________.
a)
diluted
b)
saturated
c)
supersaturated
d)
unsaturated
27.
The process by which the positive and negative ions of a crystalline solid separate in water is called ____________.
a)
dissociation
b)
ionization
c)
solution
d)
saturation
28.
Increasing the surface area of a solid ___________.
a)
causes the solid to ionize
b)
has no effect on the rate of solution
c)
slows the rate of solution
d)
speeds the rate of solution
29.
When a gas is dissolved in a liquid, the gas dissolves faster if the liquid is __________.
a)
cooled
b)
an electrolyte
c)
heated
d)
under low pressure
30.
The concentration of solution that contains a large amount of solute in the solvent could be described as ___________.
a)
concentrated
b)
diluted
c)
polar
d)
unsaturated
31.
An alloy is an example of a _______ solution.
a)
dilute
b)
gaseous
c)
liquid
d)
solid
32.
A molecule that is positively charged on one end and negatively charged on the other end is __________.
a)
a hydrocarbon
b)
nonpolar
c)
polar
d)
radioactive
33.
The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its ____________.
a)
concentration
b)
density
c)
dilution
d)
solubility
34.
Which of the following combinations would increase the solubility of a gas in a liquid?
a)
Decrease the pressure and decrease the temperature
b)
Decrease the pressure and increase the temperature
c)
Increase the pressure and decrease the temperature
d)
Increase the pressure and increase the temperature
35.
Which of the following will speed up the dissolving of a solid solute in water?
a)
Cool the solution
b)
Freeze the solute
c)
Grind up the solvent
d)
Stir the solution
36.
Adding more solute to a solvent _________.
a)
decreases its boiling point
b)
does not affect its boiling point
c)
increases its boiling point
d)
increases its freezing point
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