Acids and metals test

Question 1

acid + metal carbonate

Answer 1

salt + water + co2

Question 2

acid + metal

Answer 2

salt + hydrogen

Question 3

acid + metal oxide

Answer 3

salt + water

Question 4

acid + metal hydroxide

Answer 4

salt + water

Question 5

Insoluble salt

Answer 5

Salt that doesn’t dissolve in water

Question 6

Soluble salt

Answer 6

Salt that dissolves in water

Question 7

2 ways to measure pH

Answer 7

pH metre an universal indicator

Question 8

Sodium Carbonate + hydrochloric acid

Answer 8

Sodium chloride + water

Question 9

Potassium carbonate + nitric acid

Answer 9

potassium nitrate + water + co2

Question 10

Calcium oxide + sulfuric acid

Answer 10

Calcium sulphate + water

Question 11

Magnesium Hydroxide + nitric acid

Answer 11

Magnesium nitrate + water

Question 12

Dilute acid

Answer 12

low ratio of acid to volume of solution
(little acid, a lot of water)

Question 13

Concentrated acid

Answer 13

High ratio of acid to volume of solution
(lots of acid not a lot of water)

Question 14

Weak acid

Answer 14

partially ionised - only a small amount of hydrogen ions are released
(ethanoic acid)

Question 15

strong acid

Answer 15

fully ionised- all of the hydrogen ions are released
(nitric acid)

Question 16

hydrogen ion concentration = 0.1
pH =?

Answer 16

1

Question 17

hydrogen ion concentration = 0.0001
pH =?

Answer 17

4

Question 18

hydrogen ion concentration = 0.000001
pH =?

Answer 18

6