types of reaction

Question 1

(combustion) substance + oxygen

Answer 1

oxides

Question 2

metal + water

Answer 2

metal hydroxide + hydrogen

Question 3

metal + acid

Answer 3

salt+ hydrogen

Question 4

oxide + acid

Answer 4

salt + water

Question 5

hydroxide + acid

Answer 5

salt+ water

Question 6

carbonate + acid

Answer 6

salt + water + carbon dioxide

Question 7

hydrogencarbonate + acid

Answer 7

salt + water +carbon dioxide

Question 8

ammonia + acid

Answer 8

ammonium salt

Question 9

metal carbonate (thermal decomposition)

Answer 9

metal oxide + carbon dioxide ( when heated)

Question 10

neutralisation reaction

Answer 10

acid + base to neutralise acid
(base can be an oxide, hydroxide or carbonate)

Question 11

precipitation reaction

Answer 11

everything is dissolved in water except one product which is an insoluble solid
( aq + aq -> s + aq)

Question 12

metal displacement

Answer 12

a more reactive metal will replace a less reactive metal (CuSo4 + Zn -> ZnSo4 + Cu because zinc is more reactive than copper)

Question 13

halogen displacement

Answer 13

more reactive halogen replaces a less reactive one (KI+ Br2 -> KBr + I2 because bromine is more reactive than iodine)

Question 14

thermal decomposition

Answer 14

only one reactant ( CaCO3 -> CaO +CO2)