WorksheetsAcids, Bases, and Solutions - Practice Test
Total questions: 64
Worksheet time: 32mins
Name
Class
Date
1.
The following picture is an example of a
a)
Solution
b)
Colloid
c)
Suspension
2.
The following picture is an example of a
a)
Solution
b)
Colloid
c)
Suspension
3.
The following picture is an example of a
a)
Solution
b)
Colloid
c)
Suspension
4.
Colloids and Suspensions have ______________ particles compared to Solutions
a)
Smaller
b)
Larger
5.
Adding a solute to a solvent _________ the freezing point of the solution.
a)
raises
b)
lowers
6.
Which of the statements about the effect of solutes on solutions is true?
a)
Solutes raise the boiling point of a solvent.
b)
Water with a solute dissolved in it will freeze at 0°C.
c)
Solutes raise the freezing point of a solvent.
d)
Saltwater boils at a lower temperature than pure water.
7.
Brass is a solution in which a solid is dissolved in a(n)
a)
liquid
b)
gas
c)
solid
d)
water
8.
Which of the following statements about solutions is NOT true?
a)
Solutions are mixtures.
b)
Solutions contain a solvent dissolved in a solute.
c)
A solution has the same properties throughout.
d)
The solute in a solution can be a solid, liquid, or gas.
9.
Which of the following statements about the particles in a solution is true?
a)
When an ionic solid mixes with water, its ions repel water molecules.
b)
When a molecular solid mixes with water, the covalent bonds are broken.
c)
When an ionic solid mixes with water, water molecules surround each ion.
d)
When a molecular solid mixes with water, water molecules surround each ion.
10.
A liquid mixture in which particles can be seen and easily separated by settling or filtration is a
a)
solution.
b)
suspension.
c)
solvent.
d)
solute.
11.
If a suspension is allowed to stand, the particles "SETTLE OUT.
a)
True
b)
Colloid
c)
Ionic
d)
Larger
e)
Mixtures
12.
Solutions and colloids are similar in that both are "SUSPENSIONS".
a)
Mixtures
b)
Colloid
c)
Ionic
d)
Larger
e)
Molecular
13.
The largest particles in a colloid are "SMALLER" than the largest particles in a solution.
a)
Larger
b)
Colloid
c)
Ionic
d)
Mixtures
e)
Molecular
14.
The freezing point of a solvent "DECREASES" as solute is added.
a)
True
b)
Colloid
c)
Ionic
d)
Larger
e)
Mixtures
15.
"MOLECULAR" compounds in water conduct an electric current.
a)
Ionic
b)
Colloid
c)
Larger
d)
Mixtures
e)
Molecular
16.
A solution in which more solute can be dissolved is called a(n) ____________ solution.
a)
Unsaturated
b)
Adding
c)
Concentrated
d)
Decreases
e)
Dilute
17.
Adding _________ is a way to allow the Solvent to accept more Solute.
a)
Heat
b)
Adding
c)
Concentrated
d)
Decreases
e)
Dilute
18.
Ionic and polar compounds usually dissolve in ___________ solvents.
a)
Polar
b)
Adding
c)
Concentrated
d)
Decreases
e)
Dilute
19.
The concentration of a solution can be changed by _____________ solute.
a)
Adding
b)
Concentrated
c)
Decreases
d)
Dilute
e)
Heat
20.
_____________ is a measure of how much solute can dissolve in a solvent at a given temperature
a)
Solubility
b)
Adding
c)
Concentrated
d)
Decreases
e)
Dilute
21.
A ___________ solution that has so much solute that no more can dissolve
a)
Saturated
b)
Adding
c)
Concentrated
d)
Decreases
e)
Dilute
22.
What is the % Concentration of a solution with 26 grams of solute dissolved in 189 grams of Solution?
a)
19.4%
b)
51.1%
c)
13.8%
d)
90.9%
23.
A _______________ solution that has a lot of solute
a)
Concentrated
b)
Adding
c)
Decreases
d)
Dilute
e)
Heat
24.
As the pressure of the gas over a solution decreases, the solubility of a gas solute in a liquid solvent ______________ .
a)
Decreases
b)
Adding
c)
Concentrated
d)
Dilute
e)
Heat
25.
The solubility of a gas dissolved in a liquid _______________ as the temperature of the liquid increases.
a)
Decreases
b)
Adding
c)
Concentrated
d)
Dilute
e)
Heat
26.
Weak tea is an example of a
a)
dilute solution.
b)
concentrated solution.
c)
suspension.
d)
solvent.
27.
What does it mean if a compound has a solubility of 15 g in 100 g of water at 0°C?
a)
100 g of the compound will dissolve in 15 g of water at 0°C.
b)
15 g of the compound will dissolve in 100 g of water at 0°C.
c)
The compound will not dissolve until 15 g of it are present.
d)
The compound will dissolve only if the water temperature is 0°C.
28.
A measure of how well a solute can dissolve in a solvent at a given temperature is that substance’s
a)
saturation point.
b)
acidity.
c)
solubility.
d)
concentration.
29.
If two unidentified solids of the same texture and color have different solubilities in 100 grams of water at 20°C, you could conclude that
a)
they are the same substance.
b)
they are different substances.
c)
they have different melting points.
d)
their solubilities will be the same if the water temperature is increased.
30.
Among the factors that affect the solubility of a substance are type of solvent, pressure, and _________________________.
a)
color
b)
texture
c)
temperature
d)
taste
e)
sound
31.
Ionic and polar compounds ____________________ in water because water molecules are polar.
a)
condense
b)
dissolve
c)
boil out
d)
freeze
32.
Which of the following is NOT a property of an acid?
a)
An acid is corrosive.
b)
An acid turns red litmus paper blue.
c)
An acid reacts with metals and carbonates.
d)
An acid tastes sour.
33.
Because it wears away certain materials, an acid is described as
a)
concentrated
b)
contaminated
c)
corrosive
d)
carbonated
34.
Which of the following best describes bases?
a)
They feel slippery and taste sour.
b)
They turn red litmus paper blue and react with metals.
c)
They taste bitter and react with carbonates.
d)
They turn red litmus paper blue and taste bitter.
35.
Which of the following best describes acids?
a)
They taste sour and react with metals.
b)
They taste bitter and react with carbonates.
c)
They feel slippery and turn blue litmus paper red.
d)
They react with metals but not with carbonates.
36.
When found in foods, what does an acid taste like?
a)
Sweet
b)
Sour
c)
Bitter
d)
Umami
e)
Salty
37.
When found in foods, what does a base taste like?
a)
Sweet
b)
Sour
c)
Bitter
d)
Umami
e)
Salty
38.
How does an acid react with the metals magnesium, zinc, and iron?
a)
It does not react.
b)
It bubbles and wears away the metal.
c)
It creates sugar.
d)
It turns the metal into gold.
39.
How does a base react with the metals magnesium, zinc, and iron?
a)
It does not react.
b)
It bubbles and wears away the metal.
c)
It creates sugar.
d)
It turns the metal into gold.
40.
How does an acid react with carbonate ions?
a)
It does not react.
b)
It bubbles and wears away the rock.
c)
It creates sugar.
d)
It turns the rock into gold.
41.
How does a base react with carbonate ions?
a)
It does not react.
b)
It bubbles and wears away the rock.
c)
It creates sugar.
d)
It turns the rock into gold.
42.
What color does an acid turn litmus paper?
a)
Red
b)
Green
c)
Blue
43.
What color does a base turn litmus paper?
a)
Red
b)
Green
c)
Blue
44.
A compound that changes color when it comes into contact with an acid or a base is a(n) _________________ .
a)
Indicator
b)
Acid
c)
Bases
d)
Bitter
e)
Carbonate
45.
A base ________________ react with carbonates.
a)
Does Not
b)
Acid
c)
Bases
d)
Bitter
e)
Carbonate
46.
If carbon dioxide gas is produced when dilute acid is applied to a rock’s surface, the rock is most likely made of ___________________ .
a)
Carbonate
b)
Bitter
c)
Does
d)
Does Not
e)
Hydrochloric
47.
Because vinegar contains a(n) _____________ , it tastes sour.
a)
Acid
b)
Bases
c)
Bitter
d)
Does
e)
Does Not
48.
Many soaps and detergents contain _____________ .
a)
Bases
b)
Bitter
c)
Carbonate
d)
Does
e)
Does Not
49.
HCl + NaOH --> H2O + NaCl ....................... ? g NaOH = 300 g HCl
a)
329.12
b)
4896.76
c)
47.21
d)
3.9
50.
Untitled Question
a)
Acids
b)
Neutral
c)
Bases
51.
a)
Hydrogen
b)
Hydroxide
52.
Untitled Question
a)
Acids
b)
Neutral
c)
Bases
53.
a)
Hydrogen
b)
Hydroxide
54.
What is the pH of a neutral solution?
a)
6
b)
7
c)
8
d)
1
e)
2
55.
Which of the following substances is an acid?
a)
H+
b)
OH-
56.
The negative ion found in bases is the
a)
hydroxide ion
b)
hydrogen ion
c)
carbonate ion
d)
water ion
57.
Which of the following substances is most likely to have a pH close to 7?
a)
lemon
b)
antacid
c)
water
d)
vinegar
58.
Which of the following statements is NOT true about neutralization?
a)
An acid and a base are the reactants.
b)
A salt and water are the products.
c)
There is no color change in litmus paper when the reaction is over.
d)
It produces an acid-base mixture that is more acidic than both the individual starting solutions.
59.
A solution with a pH of 2 is ______________ acidic than a solution with a pH of 6.
a)
more
b)
less
60.
Chemists use the ________________ to express the concentration of hydrogen ions in solution.
a)
pH Scale
b)
Acids
c)
Bases
d)
Blue
e)
Green
61.
An acid produces ___________ ions in water.
a)
Hydrogen
b)
Acids
c)
Bases
d)
Blue
e)
Green
62.
Substances with pH values close to 14 are strong ___________________.
a)
Bases
b)
Acids
c)
Blue
d)
Green
e)
Hydrogen
63.
A strip of blue litmus paper placed in a beaker of vinegar will turn _______________.
a)
Red
b)
Acids
c)
Bases
d)
Blue
e)
Green
64.
A base produces ____________________ ions in water.
a)
Hydroxide
b)
Acids
c)
Bases
d)
Blue
e)
Green
100 %
