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WorksheetsSOLUTIONS
Total questions: 14
Worksheet time: 14mins
Name
Class
Date
1.
The substance being dissolved is called the ________
a)
solvent
b)
solid
c)
solute
d)
solvate
2.
When no more solute dissolves the solution is _________
a)
supersaturated
b)
unsaturated
c)
saturated
d)
supercalifragilisticexpialidocious
3.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
4.
air is a
a)
compound
b)
element
c)
heterogeneous mixture
d)
solution
5.
Another name for a homogeneous mixture is
a)
an element.
b)
a solution.
c)
a compound.
6.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
7.
Which solute is the most soluble at 10 ⁰C?
a)
KI
b)
KClO3
c)
NH4Cl
d)
NH3
8.
When 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
9.
How do you know when you have a saturated solution?
a)
You don't see anymore material in the solution. It has dissolved.
b)
The material dissolves and no more will dissolve because you see it collect at the bottom.
c)
The solution is bubbling and cloudy.
d)
The solution is clear and there is nothing at the bottom.
10.
What is a "homogeneous mixture of two or more substances in a single phase"?
a)
Solution
b)
Solvent
c)
Solute
d)
Compound
11.
A supersaturated solution is one that....
a)
contains the maximum amount of dissolved solute.
b)
contains less solute than a saturated solution.
c)
contains more solute than a saturated solution.
d)
is the amount of a substance required to form a saturated solution.
12.
If I want more sugar to dissolve in water, I should heat the water
a)
true
b)
false
13.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
14.
The concentration of a mixture can be increased in which of the following ways?
a)
Heating the mixture
b)
Adding more water “solvent”
c)
Adding more powder “solute”
d)
Stirring the mixture
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