Chapter 1.7 Acids and Bases

Question 1

The pH scale is a measure of the concentration of

Answer 1

hydrogen ions

Question 2

A pH below 7 is

Answer 2

Acidic

Question 3

A pH above 7 is

Answer 3

Alkaline

Question 4

pH 7 is

Answer 4

neutral

Question 5

Acidic solutions have a higher concentration of

Answer 5

H+ ions (hydrogen)

Question 6

All acids contain ions and as a result

Answer 6

conduct electricity because the ions are free to carry the charge

Question 7

When an acid is diluted with water the concentration of H+ ions is

Answer 7

decreased. So the pH moves towards 7.

Question 8

Alkaline solutions have a higher concentration of

Answer 8

OH- (hydroxide ions).

Question 9

Alkalis contain ions and as a result

Answer 9

conduct electricity

Question 10

Acids and alkalis are formed by

Answer 10

dissolving different oxides in water.

Question 11

Soluble non-metal oxides produce

Answer 11

acids

Question 12

Soluble metal oxides (bases) produce

Answer 12

alkalis

Question 13

Neutralization reactions produce

Answer 13

a salt and water

Question 14

The salt in this reaction would be:

hydrochloric acid + sodium hydroxide——–> ________ + H2O

Answer 14

Sodium Chloride

Question 15

Spectator ions are ions that are

Answer 15

present during the reaction but remain unchanged by the reaction

Question 16

When an acids reacts with a metal carbonate asides from salt and water, what else is produced

Answer 16

Carbon Dioxide

Question 17

A titration is an acid base procedure used to determine

Answer 17

the concentration of an acid

Question 18

PVC (acid) = PVC(alkali), what does the P stand for?

Answer 18

The number of ‘H’s and acid or alkali has