ATI Chemistry Practice Test 3

Question 1

What is the pH of a solution with a hydrogen ion concentration [H+] of 1 x 10^-4 M?

Accepted Answer

4

Answer

2

Answer

10

Answer

14

Question 2

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Hydrogen bond

Answer

Metallic bond

Question 3

In an exothermic reaction, what happens to energy?

Accepted Answer

Energy is released to the surroundings

Answer

Energy is absorbed from the surroundings

Answer

Energy remains unchanged

Answer

Energy is converted entirely to matter

Question 4

What is the molarity of a solution containing 58.5 grams of NaCl dissolved in enough water to make 2 liters of solution? (Molar mass of NaCl = 58.5 g/mol)

Accepted Answer

0.5 M

Answer

0.25 M

Answer

1.0 M

Answer

2.0 M

Question 5

Which of the following is a property of a buffer solution?

Accepted Answer

It resists changes in pH when small amounts of acid or base are added

Answer

It always maintains a pH of exactly 7.0

Answer

It completely neutralizes any acid added to it

Answer

It only works in biological systems

Question 6

What type of reaction occurs when an acid reacts with a base to produce water and a salt?

Accepted Answer

Neutralization

Answer

Oxidation-reduction

Answer

Decomposition

Answer

Synthesis