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Unit 4 Study Guide

Total questions: 58

Worksheet time: 32mins

Name
Class
Date
1.

A substance that tastes sour, reacts with metals, and turns blue litmus paper red is called _______.

a)

acid

b)

base

c)

salt

d)

water

2.

A substance that tastes bitter, feels slippery, and turns red litmus paper blue is called _______.

a)

base

b)

acid

c)

salt

d)

metal

3.

A property of some substances to 'eat away' at other materials is called _______.

a)

corrosive

b)

flammable

c)

magnetic

d)

elastic

4.

A compound that changes color when in contact with an acid or a base is called an _______.

a)

indicator

b)

solvent

c)

catalyst

d)

reactant

5.

An atom which has gained or lost electrons, resulting in an overall charge, is called an _______.

a)

ion

b)

isotope

c)

molecule

d)

proton

6.

Acids produce _______ in water.

a)

Hydrogen Ions (H+)

b)

Oxygen Molecules (O2)

c)

Sodium Ions (Na+)

d)

Chloride Ions (Cl-)

7.

Bases produce _______ in water.

a)

Hydroxide Ions (OH-)

b)

Hydrogen Ions (H+)

c)

Sodium Ions (Na+)

d)

Chloride Ions (Cl-)

8.

What is the pH range for acids, neutral substances, and bases?

a)

0-6 Acids, 7 neutral, 8-14 bases

b)

0-7 Acids, 8 neutral, 9-14 bases

c)

1-5 Acids, 6-8 neutral, 9-14 bases

d)

0-4 Acids, 5-9 neutral, 10-14 bases

9.

List the pH values of strong acids.

a)

0-3.5

b)

4-7

c)

7-10

d)

10-14

10.

List the pH values of weak acids.

a)

3.5-6.9

b)

0-1.9

c)

7.0-8.5

d)

12.0-14.0

11.

List the pH value of neutral substances. Neutral: ___

a)

7

b)

5

c)

9

d)

2

12.

List the pH values of weak bases.

a)

7.1-10.5

b)

1-3

c)

4-6.9

d)

11-14

13.

List the pH values of strong bases.

(a)  

14.

Which of the following indicates a neutralization reaction?

a)

Acid + Acid → Salt + Water

b)

Base + Acid → Base + Water

c)

Acid + Base → Acid + Salt

d)

Base + Acid → Water + Salt

15.

Soap feels slippery. What effect will it have on red litmus paper? Blue litmus paper?

4 lines
16.

How can antacids calm the symptoms of a stomachache?

a)

They will neutralize the acid because they are bases

b)

They increase the production of stomach acid

c)

They cause the stomach to produce more enzymes

d)

They make the stomach more acidic

17.

Give an example of a solution.

a)

Kool-Aid

b)

Sand and iron filings

c)

Oil and water

d)

Marbles in a jar

18.

If you add sugar to lemonade and stir, you form a solution. Is the sugar a solute or a solvent?

a)

Solute

b)

Solvent

c)

Liquid

d)

Base

19.

If you add sugar to lemonade and stir, you form a solution. Is the lemonade a solute or a solvent?

a)

Solvent

b)

Solute

c)

Precipitate

d)

Suspension

20.

What type of mixture is a solution?

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

c)

Colloidal Mixture

d)

Suspension

21.

A(n) ________ solution is a solution that has less than the maximum amount of solute that can be dissolved.

a)

Unsaturated

b)

Saturated

c)

Supersaturated

d)

Dilute

22.

A(n) ________ solution is a solution that contains more solute than it can normally hold.

a)

Supersaturated

b)

Dilute

c)

Unsaturated

d)

Saturated

23.

A(n) ________ solution is a solution that contains as much solute as it can hold.

a)

Saturated

b)

Dilute

c)

Unsaturated

d)

Concentrated

24.

Name some factors that affect the solubility of a solute.

a)

1) Temperature 2) Pressure 3) Agitation 4) Concentration 5) Surface Area 6) Catalyst

b)

1) Color 2) Shape 3) Odor 4) Density 5) Taste 6) Texture

c)

1) Volume 2) Mass 3) Hardness 4) Elasticity 5) Magnetism 6) Transparency

d)

1) Boiling point 2) Melting point 3) Freezing point 4) Conductivity 5) Luster 6) Malleability

25.

Polar molecules will form solutions with other ______ molecules.

a)

polar

b)

nonpolar

c)

ionic

d)

metallic

26.

Nonpolar molecules will form solutions with other ______ molecules.

a)

nonpolar

b)

polar

c)

ionic

d)

metallic

27.

The solubility of solids ______ as the solvent temperature increases.

a)

increases

b)

decreases

c)

remains the same

d)

becomes zero

28.

If the pressure in a solution increases, then its solubility (a)   .

29.

Using the solubility chart below, list the two substances which have the same solubility at 83° C.

a)

C & D

b)

A & B

c)

B & D

d)

A & C

30.

Using the solubility chart below, list the temperature at which 55 g of Substance A dissolves in 100 g of water. (Refer to the Solubility Curve Graph)

a)

50 °C

b)

20 °C

c)

70 °C

d)

90 °C

31.

If a solution A has 50 gram of solute per 100 g of water at 60 degrees C, the solution is said to be.

a)

SUPERSATURATED

b)

UNSATURATED

c)

SATURATED

d)

DILUTE

32.

What is solubility?

a)

the maximum amount of a substance that will dissolve in a given amount of solvent at a specified temperature

b)

the temperature at which a substance melts

c)

the process of a solid turning into a gas

d)

the ability of a substance to conduct electricity

33.

23. A(n) ________ is a substance that ionizes when it dissolves in water, resulting in a solution that can conduct electricity.

a)

electrolyte

b)

solvent

c)

colloid

d)

precipitate

34.

The ________ of a solution is the amount of solute dissolved in a specified amount of solution.

a)

concentration

b)

temperature

c)

pressure

d)

volume

35.

25. Acids are proton _________?

a)

donors

b)

acceptors

c)

neutralizers

d)

buffers

36.

26. Bases are proton _________.

a)

acceptors

b)

donors

c)

neutralizers

d)

reducers

37.

27. Which of the following are ways to quickly dissolve a solid substance in water?

a)

Increase the temperature, stir the solution, and crush the solid

b)

Decrease the temperature, leave the solution still, and use large solid pieces

c)

Add more solid, use cold water, and avoid stirring

d)

Cover the container, use less water, and keep the solid whole

38.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. KOH: _______

a)

Base

b)

Acid

c)

Salt

d)

Water

39.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. H2SO4: _______

a)

Acid

b)

Base

c)

Salt

d)

Water

40.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. NH4OH: _______

a)

Base

b)

Acid

c)

Salt

d)

Neutral

41.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. Ca(OH)2: _______

a)

Base

b)

Acid

c)

Salt

d)

Water

42.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. HClO4: _______

a)

Acid

b)

Base

c)

Salt

d)

Water

43.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. HClO2: _______

a)

Acid

b)

Base

c)

Salt

d)

Neutral

44.

The following are common acids and bases. Label each of them with an A for Acid or B for Base. Mg(OH)2: _______

a)

Base

b)

Acid

c)

Salt

d)

Water

45.

Which of the following is a way to distinguish between acids and bases?

a)

By their color

b)

By their taste

c)

By their pH value

d)

By their boiling point

46.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Lemons: _______

a)

A

b)

B

c)

N

d)

None of the above

47.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Ammonia: _______

a)

B

b)

A

c)

N

d)

C

48.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Drinking Water: _______

a)

N

b)

A

c)

B

d)

C

49.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Alka Seltzers: _______

a)

B

b)

A

c)

N

d)

C

50.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Tomato: _______

a)

A

b)

B

c)

N

d)

None of the above

51.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Soap: _______

a)

B

b)

A

c)

N

d)

C

52.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Milk: _______

a)

A

b)

B

c)

N

d)

None of the above

53.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Vinegar: _______

a)

A

b)

B

c)

N

d)

C

54.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Bleach: _______

a)

B

b)

A

c)

N

d)

C

55.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Drain Cleaner: _______

a)

B

b)

A

c)

N

d)

C

56.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Gastric Juices: _______

a)

A

b)

B

c)

N

d)

None of the above

57.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Distilled Water: _______

a)

N

b)

A

c)

B

d)

C

58.

Would the following household items be considered Acids (A), Bases (B), or Neutral (N)? Rain Water: _______

a)

A

b)

B

c)

N

d)

None of the above

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