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🧲 Acid/Base Properties 🥼

Total questions: 70

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

NaOH is:

a)

an Arrhenius base

b)

an Arrhenius acid

c)

neither an acid nor a base

d)

both an acid and a base

2.

An Arrhenius base:

a)

donates H+

b)

accepts H+

c)

accepts OH-

d)

donates OH-

3.

An Arrhenius acid:

a)

accepts H+ from another substance

b)

accepts OH- from another substance

c)

produces H+ in solution

d)

produces OH- in solution

4.
A hydrogen ion, H+, is the same as a(n):
a)

neutron

b)

electron

c)

hydronium
(H3O+)

d)

hydroxide ion
(OH-)

5.

Forms a OH- hydroxide ion in solution

a)

Arrhenius Acid

b)
Arrhenius Base
c)

Bronsted-- Lowry Base

d)

Bronsted-Lowry Acid

6.

The following statement is true for ARRHENIUS acids and bases EXCEPT

a)

Arrhenius acids produce H+ ions

b)

Arrhenius bases produce OH- ions

c)

H2O need to be present for Arrhenius acid base to dissociate into ions

d)

Arrhenius acids accept H+ ions

7.

A Bronsted-Lowry base:

a)

donates H+ to another substance

b)

accepts H+ from another substance

c)

produces H+

d)

produces OH-

8.

Which of the following does not describe an Arrhenius or Bronsted-Lowry acid or base?

a)

Produces H+ ions

b)

Produces OH- ions

c)

Donates H+ ions to another substance

d)

Donates OH- ionsto another substance

9.
The Acid-Base classification system that defined acids as those that release H+ and bases as release OH- is known as ________.
a)

Bronsted-Lowry acid-base

b)
Arrhenius acid-base
c)
Lewis acid-base
d)

Dalton acid-base

10.

Which substance is an Arrhenius base

a)

KCl

b)

CH3Cl

c)

KOH

d)

CH3OH

11.

Bronsted-Lowry acid-base theory states that an acid is an

a)

H+ donor

b)

H+ acceptor

c)

OH- donor

d)

OH- acceptor

12.

According to Bronsted-Lowry theory, a water molecule acts as a base when the water molecule

a)

H+ donor

b)

H+ acceptor

c)

OH- donor

d)

OH- acceptor

13.

Given the equation representing a reaction:

H2CO3 + NH3 → NH4+ + HCO3-

According to Bronsted-Lowry theory, the compound NH3 acts as a base because it

a)

accepts a hydrogen ion

b)

donates a hydrogen ion

c)

accepts a hydroxide ion

d)

donates a hydroxide ion

14.

Given the balanced equation representing a reaction:

H2O(ℓ) + HCl(g) → H3O+(aq) + Cl-(aq)

According to Bronsted-Lowry theory, the H2O(ℓ) molecules

a)

accept H+ ions

b)

accept OH- ions

c)

donate H+ ions

d)

donate OH- ions

15.

According to Bronsted-Lowry theory, the water is acting as

a)

a base because it accepts an H+

b)

a base because it donates an H+

c)

an acid because it accepts an H-

d)

an acid because it donates an H-

16.

Which of the following is a binary acid?

a)

H2SO4

b)

HNO3

c)

H2Se

d)

HC2H3O2

17.

According to Brønsted-Lowry acid base theory, an acid ___.

a)

is a proton donor

b)

is a proton acceptor

c)

produces H+ when added to water

d)

turns phenolphthalein pink

18.

According to Arrhenius acid-base theory, an acid ___.

a)

is an H+ acceptor

b)

is a H+ donor

c)

is a substance that produces H+ in water

d)

turns litmus paper blue

19.

Which reactant in the following equation is acting as a Brønsted-Lowry acid?

a)

ammonium
(NH4+)

b)

ammonia
(NH3)

c)

hydroxide
(OH-)

d)

water
(H2O)

20.

HSO4-(aq) + H2O(l) → H3O+(aq) + SO42-(aq)

Identify the Brønsted-Lowry acid in the above reaction.

a)

HSO4-

b)

H2O

c)

H3O+

d)

SO42-

21.

CO32-(aq) + H2O(l) → HCO3-(aq) + OH-(aq)

Using the above reaction, which species is the conjugate base?

a)

CO32-

b)

H2O

c)

HCO3-

d)

OH-

22.

A substance that remains when a base has accepted an H+ ion is a(n)


(a)  
Choose from the below words
conjugate acid
acid
base
conjugate base
23.

Choose the conjugate acid of OH-

a)

HCO3-

b)

OH-

c)

CO32-

d)

H2O

24.

Choose the conjugate base of HNO3

a)

HNO3

b)

H2O

c)

H3O+

d)

NO3-

25.

True or False: All Arrhenius acids are also Brønsted-Lowry acids.

a)

True

b)

False

26.

Which of the following substances is both a Brønsted-Lowry base and an Arrhenius base?

a)

NH3(aq)

b)

LiOH(aq)

c)

HCl(g)

d)

HCl(aq)

27.

Which of the following is a polyprotic acid?

a)

HCl

b)

H2SO4

c)

HNO3

d)

HF

28.

Which of the following is the hydronium ion?

a)

H+

b)

H2O

c)

OH–

d)

H3O+

29.

Which substance is an Arrhenius base?

a)

KCl

b)

CH3Cl

c)

KOH

d)

CH3OH

30.

The conjugate acid for NH3 is

a)

NH2

b)

N

c)

H3

d)

NH4+

31.

According to Arrhenius acid-base theory, a base ___.

a)

is an H+ acceptor

b)

is a H+ donor

c)

is a substance that produces OH- in water

d)

turns litmus paper red

32.

According to Brønsted-Lowry acid base theory, a base ___.

a)

is a proton donor

b)

is a proton acceptor

c)

produces OH- when added to water

d)

has a bitter taste

33.
What is the conjugate acid in the following equation?
a)
PO43- 
b)
HNO3 
c)
NO3- 
d)
HPO42-
34.
What is the conjugate base in the following reaction?
a)
HCO3- 
b)
HCl
c)
 H2CO3 
d)
Cl-
35.
What is the conjugate base of HCO3-?
a)
HCO3-
b)
H2CO3-
c)
H2CO3
d)
CO32-
36.
What substances increase H+ ion concentrations when dissolved in water?
a)
Brønsted-Lowry Acids
b)
Brønsted-Lowry Bases
c)
Arrhenius Acids
d)
Arrhenius Bases
37.
What substances increase OH- ion concentrations when dissolved in water?
a)
Brønsted-Lowry Acids
b)
Brønsted-Lowry Bases
c)
Arrhenius Acids
d)
Arrhenius Bases
38.
When a hydroxide ion is released what does the solution become?
a)
Basic
b)
Acidic
c)
Amphoteric
d)

Neutral

39.
When a hydrogen ion is released what does the solution become?
a)
Basic
b)
Acidic
c)
Amphoteric
d)

Neutral

40.
Which of the following represents the chemical formula for hydronium?
a)
H2O
b)
H+
c)
H3O+
d)
OH-
41.
Which of the following statements about acids is true?
a)
They taste sweet.
b)
They taste sour.
c)

They are slippery.

42.
Which has a bitter taste?
a)
Base
b)
Acid
c)

Electrolyte

d)

Nonelectrolyte

43.
Which has a slippery texture?
a)
Acid
b)
Base
c)

Salt

44.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
45.
Which type of ion does a base produce when it is dissolved in water?
a)
oxide
b)
oxygen
c)
hydrogen
d)
hydroxide
46.

Which is an electrolyte

a)

Acids

b)

Bases

c)

Acids, Bases and Salts

d)

Acids and Bases

47.

Taste Bitter

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

48.

Taste Sour

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

49.

Turns Litmus Paper Red

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

50.

Turns Litmus Paper Blue

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

51.

Feels Slippery

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

52.

Can be dangerous or harmful

a)

Acid

b)

Base

c)

Neither Acid nor Base

d)

Both Acid and Base

53.

Is an electrolyte

a)

Acid

b)

Base

c)

Neither Acid nor Base

d)

Both Acid and Base

54.

CaCO3

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

55.

Na2CO3

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

56.

H2SO4

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

57.

HF

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

58.

KOH

a)

Acid

b)

Base

c)

Salt

d)

Both Acid and Base

59.

Mark all of the acids in the list

a)

HCl

b)

NaOH

c)

HNO3

d)

hydrosulfuric acid

e)

nitrogen trihydride

60.

Mark all of the binary acids:

a)

HBr

b)

NaBr

c)

HBrO2

d)

H2S

61.
Soap is a weak base.  What is true about the taste of bases?
a)
they taste sour
b)
they taste sweet
c)
they taste bitter
d)
they taste salty
62.
Feels slippery.
a)
Acids
b)
Bases
c)

Acids and Bases

d)

Salts

63.

What is the name of this ion: H3O+?

a)
helium ion
b)
hydrogen ion
c)
hepatic ion
d)
hydronium ion
64.

Reacts with metals

a)

acid

b)

base

c)

both acid and base

d)

salt

65.

tastes sour

a)

acid

b)

base

c)

both an acid and a base

d)

salt

66.

Tastes bitter

a)

acid

b)

base

c)

both an acid and a base

d)

salt

67.

Turns indicators different colors

a)

acid

b)

base

c)

both an acid and a base

d)

salt

68.
Ca(OH)2 is an example of a(n)
a)
Acid
b)
Base
c)

Salt

69.
What are the weak acids and bases?
a)
all acids and bases are weak
b)
if not classified as strong, the acid/base is considered weak
c)
all acids and bases are strong
d)
there are more strong acids and bases than there are weak acids/bases
70.

Which of the following is the correct definition for a strong acid?

a)

Partially dissociates into ions when dissolved in water and the change is not reversible

b)

Fully dissociates into ions when dissolved in water and the change is not reversible

c)

Fully dissociates into ions when dissolved in water and the change is reversible

d)

Partially dissociates into ions when dissolved in water and the change is reversible

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