Chemistry Daily 10’s

Week 16

1

1. Acids react witha. bases to produce salts and water.b. salts to produce bases and water.c. water to produce bases and salts.d. neither bases, salts, nor water.

2. A binary acid containsa. two hydrogen atoms.b. hydrogen and one other element.c. hydrogen and two other elements.d. hydrogen and three other elements.

2

1. Compared with acids that have the suffix -ic, acids that have the suffix -ous contain

a. more hydrogen.b. more oxygen.c. less oxygen.d. the same amount of oxygen.

2. A substance that ionizes nearly completely in aqueous solutions and produces H3O+ is a

a. weak base.b. strong base.c. weak acid.d. strong acid.

3

1. In the equation HCl(g) + H2O(l) H3O+(aq) + Cl–(aq), which species is a Brønsted-Lowry acid?

a. HClb. H2O

c. Cl–

d. None of the above

2. A Lewis base is a(n)a. producer of OH– ions.b. proton acceptor.c. electron-pair donor.d. electron-pair acceptor.

4

1. In the reaction represented by the equation Ag+(aq) + 2NH3(aq) [Ag(NH3)2]+(aq), Ag+ is a

a. Brønsted-Lowry acid.b. Lewis acid.c. Brønsted-Lowry base.d. Arrhenius base.

2. In the reaction represented by the equation , a conjugate acid-base pair is

a. F– and H2O.

b. HF and F–.c. H3O+ and HF.

d. HF and H2O.

5

1. An amphoteric species is one that reacts as a(n)

a. acid only.b. base only.c. acid or base.d. None of the above

2. Which of the following is amphoteric?a. H3PO4

b. H+

c.d.

Answers & Standards

• 1.1. ANS: A STA: SC7.b• 1.2. ANS: B STA: SC7.b• 2.1. ANS: C STA: SC7.b• 2.2. ANS: D STA: SC7.b• 3.1. ANS: A STA: SC7.b• 3.2. ANS: C STA: SC7.b• 4.1. ANS: B STA: SC1.d• 4.2. ANS: B STA: SC7.b• 5.1. ANS: C STA: SC7.b• 5.2. ANS: C STA: SC7.b