Topic 4 Reactions of acids

Question 1

Acid + metal oxide - >

Answer 1

Salt + water

Question 2

Acid + metal hydroxide->

Answer 2

Salt + water

Question 3

Acid +metal carbonate ->

Answer 3

Salt + water + carbon dioxide

Question 4

Making soluble salts using insoluble bases practical

Answer 4

1)Pick the right acid and insoluble base
2) warm the dilute acid using a Bunsen burner and then turn it off
3)add the insoluble base to the acid a slowly, until no more reacts (excess solid should sink to the bottom)
4)then filter out the excess solid to get the salt solution
5)to get pure solid crystals of the salt gently heat solution using water bath or electric heater to evaporate some of the water and stop heating to let cool. Crystals of salt form which can be filtered and dried