quiz 15

Question 1

Give an example of an alkali

Answer 1

sodium hydroxide

Question 2

Define acids in terms of of pH

Answer 2

A substance with a pH of less than 7

Question 3

Which substances can neutralise acids?

Answer 3

alkali and bases

Question 4

How can the concentration of an acid be increased?

Answer 4

reducing the volume of water

Question 5

complete the equation: metal oxide + acid —->

Answer 5

metal oxide + acid ——-> salt + water

Question 6

Describe the relationship between the concentration of an acid and its pH

Answer 6

As an acid increases in concentration, its pH decreases

Question 7

Name the salts formed by the 3 main laboratory acids.

Answer 7

Hydrochloric acid produces chlorides.
sulfuric acid produces sulfates
nitric acid produces nitrates

Question 8

Complete the equation: metal carbonate + acid
—->

Answer 8

metal carbonate + acid ——> salt+ water + carbon dioxide

Question 9

State the term used to describe the metal- containing the product of a reaction with an acid

Answer 9

A salt

Question 10

Give the equation that shows the reaction between H+ and OH- ions

Answer 10

H+ + OH- ——> H2O

Question 11

complete the equation: metal + acid —–>

Answer 11

metal + acid——-> salt + hydrogen