1. C2 7.2 (a) Acids and metals L/O * acid + metal salt + hydrogen
* acid + base salt + water

3. zinc
hydrogen
sulphate
hydrogen
sodium
chloride
hydrogen
potassium

4. Neutralisation reaction
C (b) Acids and insoluble bases
Neutralisation reaction
H+ (aq) OH- (aq) H2O (l)

5. Neutralisation reaction
C (b) Acids and insoluble bases
Neutralisation reaction
H+ (aq) OH- (aq) H2O (l)

6. Zinc Sulfate

11. neutralisation
salt
water
hydrogen
metals
bases
Wasp stings
are alkali
+ enzymes
Dock leaves are alkali
and can neutralise
nettle stings
(methanoic acid)