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WorksheetsSolutions Test Review
Total questions: 38
Worksheet time: 37mins
Name
Class
Date
1.
This is a heterogeneous mixture in which particles settle out unless it is constantly stirred.
a)
colloid
b)
suspension
c)
solution
d)
alloy
2.
Which of the following is a homogeneous mixture?
a)
ocean water (sand and water)
b)
purified water (bottled water)
c)
Aqueous NaCl
d)
Gravel (rocks and dirt)
3.
This is a type of heterogeneous mixture in which the particles are dispersed and do not settle out.
a)
alloy
b)
solution
c)
suspension
d)
colloid
4.
If an electrical current can run through a solution, it is said to contain
a)
magic
b)
nonelectrolytes
c)
electricity
d)
electrolytes
5.
The "like dissolves like" rule is the reason why water cannot dissolve
a)
salt
b)
sugar
c)
vinegar
d)
oil
6.
Two liquids that do not dissolve (form a homogeneous mixture) when mixed are called
a)
immiscible
b)
miscible
c)
mixable
d)
immixable
7.
A solution consists of two parts. One part is the substance that is dissolved. What is the name of this part of a solution?
a)
solvent
b)
solution
c)
solute
d)
oxygen
8.
When two liquids mix, they are said to be....
a)
insoluble
b)
miscible
c)
soluble
d)
immiscible
9.
Water is a universal solvent
a)
true
b)
false
10.
The _____________ is the one doing the dissolving (water).
a)
solvent
b)
solute
c)
mixture
d)
reatants
11.
Reacts with metals to form H2.
a)
Acids
b)
Bases
c)
All
d)
Salts
12.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
13.
Turns litmus blue.
a)
Acids
b)
Bases
c)
Salts
d)
All
14.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
15.
Electrolyte
a)
Acids
b)
Bases
c)
Salts
d)
All
16.
Feels slippery.
a)
Acids
b)
Bases
c)
All
17.
Changes the color of indicators.
a)
Acids
b)
Bases
c)
All
18.
Forms hydroxide ions in water
a)
Acids
b)
Bases
c)
All
19.
Conducts electricity
a)
Acids
b)
Bases
c)
Salts
d)
All
20.
Forms hydronium ions in water.
a)
Acids
b)
Bases
c)
All
21.
Turns litmus red
a)
Acids
b)
Bases
c)
All
22.
pH greater than 7.
a)
Acids
b)
Bases
c)
All
23.
pH less than 7.
a)
Acids
b)
Bases
c)
All
24.
The pH scale measures ____ and ____
a)
acidity and basic
b)
the tempurature
c)
how fun a chemistry quiz is
d)
none of the above
25.
Which is most acidic?
a)
Baking Soda
b)
Lemon Juice
c)
Black Coffee
26.
The pH scale is based off of the concentration of _________ ions.
a)
Oxygen
b)
Hydronium
c)
Nitrogen
d)
None of the others
27.
A beaker containing 80 grams of lead(II) nitrate, Pb(NO3)2, in 100 grams of water has a temperature of 30 ºC. Approximately how many grams of the salt are undissolved, on the bottom of the beaker?
a)
20 grams
b)
80 grams
c)
66 grams
d)
14 grams
28.
Which salt is LEAST soluble at 0 ºC?
a)
K2Cr2O7
b)
KNO3
c)
KClO3
d)
Ce2(SO4)3
29.
How many grams of sodium nitrate, NaNO3, are soluble in 100 g of water at 10 ºC?
a)
80 grams
b)
100 grams
c)
40 grams
d)
10 grams
30.
When 50 grams of potassium chloride, KCl, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
31.
When 50 grams of potassium chloride, KCl, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
32.
At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?
a)
60 ºC
b)
30 ºC
c)
50 ºC
d)
83 ºC
33.
When 30 grams of potassium nitrate, KNO3, is dissolved in 100 grams of water at 20 ºC, the solution can be correctly described as:
a)
saturated
b)
unsaturated
c)
supersaturated
34.
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
35.
Increasing the temperature always increases the solubility of a solute in a solvent
a)
true
b)
false
36.
Acid rain is a weak acid because it produces _____ ions in solution
a)
strong
b)
weak
c)
only a few
d)
many
37.
Which of the following does NOT make a solution dissolve faster in a liquid?
a)
stirring the mixture
b)
heating a mixture
c)
using a smaller volume of liquid
d)
breaking the solid into smaller parts
38.
Why do we add salt to the roads when conditions are favorable for icing?
a)
the salt reacts with the water and heats it up
b)
the ratio of solute to solvent increases and therefore lowers the freezing point of water
c)
Salt makes things warmer
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