Neutralisation

Question 1

What is a base?

Answer 1

A substance that reacts with an acid producing salt and water (alkali)

Question 2

Are alkalis soluble?

Answer 2

Yes, they are soluble bases

Question 3

What are metal hydroxides?

Answer 3

Alkalis

Question 4

What are metal oxides?

Answer 4

Bases

Question 5

What is an indicator?

Answer 5

A chemical that gives a colour change in acidic, alkaline and neutral solutions

Question 6

What colour is universal indicator in alkali

Answer 6

Purple

Question 7

What colour is universal indicator in acid?

Answer 7

Red

Question 8

What colour is phenolphthalein in alkali?

Answer 8

Pink

Question 9

What colour is phenolphthalein in acid?

Answer 9

Colourless

Question 10

What does metal and acid give?

Answer 10

Salt and hydrogen

Question 11

What does an acid and alkali give?

Answer 11

Salt + water

Question 12

What does an acid and metal carbonate give?

Answer 12

Salt+water+carbon dioxide

Question 13

When is salt formed?

Answer 13

When some or all of the hydrogen ions in an acid are replaced my metal ions or ammonium ions.

Question 14

What is hydrochloric acid’s salt?

Answer 14

Chloride

Question 15

What is sulphuric acid’s salt?

Answer 15

Sulfate

Question 16

What is nitric acid’s salt?

Answer 16

Nitrate

Question 17

What is a salt name made up of?

Answer 17

A metal part and an ending depending on the acid used

Question 18

What is neutralisation?

Answer 18

A reaction between an acid and an alkali producing salt and water

Question 19

What are some examples of neutralisation?

Answer 19

Indigestion remedies, lime in acidic soil, baking powder on a bee sting, vinegar on a wasp sting

Question 20

What pH are acids?

Answer 20

Between 1-6

Question 21

What pH are alkalis?

Answer 21

8-14

Question 22

What is a neutral pH?

Answer 22

7