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Worksheets

Acids and Bases

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

An _______ acid is a substance with H in its formula that dissociates in water to yield H3O+.

a)

Bronsted-Lowry

b)

Arrhenius

c)

Lewis

d)

Henry

2.

HCl + H2O ⇌ Cl- + H3O+

Based on this equation, Cl- would be considered what?

a)

base

b)

conjugate acid

c)

conjugate base

d)

acid

3.

NH3 + H2O ⇌ NH4+ + OH-

Based on this equation, H2O would be considered what?

a)

conjugate base

b)

base

c)

conjugate acid

d)

acid

4.

A _______ base is any species that donates an electron pair to form a bond

a)

Arrhenius

b)

Bronsted-Lowry

c)

Henry

d)

Lewis

5.

NH3 + H2O ⇌ NH4+ + OH-

Based on this equation, NH3 would be considered what?

a)

acid

b)

base

c)

conjugate acid

d)

conjugate base

6.

A _______ acid is any species that donates an H+ ion, a proton donor.

a)

Bronsted-Lowry

b)

Henry

c)

Arrhenius

d)

Arrhenius

7.

If HPO42- is the acid, what is the conjugate base?

a)

H3PO4

b)

PO42-

c)

H2PO4-

d)

PO43-

8.

An _______ base is a substance with OH in its formula that dissociates in water to yield OH-.

a)

Henry

b)

Lewis

c)

Bronsted-Lowry

d)

Arrhenius

9.

HCl + H2O ⇌ Cl- + H3O+

Based on this equation, H3O+ would be considered what?

a)

conjugate acid

b)

base

c)

conjugate base

d)

acid

10.

A _______ acid is any species that accepts an electron pair to form a bond

a)

Arrhenius

b)

Lewis

c)

Henry

d)

Bronsted-Lowry

11.

What is NH3?

a)

weak base

b)

strong acid

c)

strong base

d)

weak acid

12.

HCl + H2O ⇌ Cl- + H3O+

Based on this equation, H2O would be considered what?

a)

base

b)

conjugate acid

c)

acid

d)

conjugate base

13.

NH3 + H2O ⇌ NH4+ + OH-

Based on this equation, NH4+ would be considered what?

a)

conjugate base

b)

conjugate acid

c)

base

d)

acid

14.

Which would be considered a Lewis acid?

a)

BCl3

b)

CH4

c)

CH3NH2

d)

F-

15.

What is CH3COOH?

a)

strong acid

b)

weak base

c)

strong base

d)

weak acid

16.

HCl + H2O ⇌ Cl- + H3O+

Based on this equation, HCl would be considered what?

a)

conjugate base

b)

conjugate acid

c)

acid

d)

base

17.

If HCN is the conjugate acid, what is the base?

a)

H2CN+

b)

CN+

c)

CN-

d)

H2CN-

18.

A _______ base is any species that accepts an H+ ion, a proton acceptor.

a)

Henry

b)

Arrhenius

c)

Bronsted-Lowry

d)

Lewis

19.

NH3 + H2O ⇌ NH4+ + OH-

Based on this equation, OH- would be considered what?

a)

conjugate acid

b)

base

c)

acid

d)

conjugate base

20.

Which would be considered a Lewis base?

a)

NH4+

b)

BCl3

c)

Cl-

d)

Mn2+