Reactions of metal compounds

Question 1

Metal oxides + heat

Answer 1

K - Cu: No reaction

Below Cu: Decompose –> Metal + oxygen

Question 2

Metal oxides + hydrogen

Answer 2

K - Zn: No reaction

Below Zn: Reduced –> Metal + water

Question 3

Metal oxides + carbon

Answer 3

K - Al: No reaction

Below C: Reduced –> Metal + carbon dioxide

Question 4

Metal oxides + water

Answer 4

K - Ca: Reduced –> Metal hydroxide

Below Ca: No reaction

Question 5

Metal hydroxide + heat

Answer 5

K - Na: No reaction
Ca - Cu: Decompose –> Metal oxide + water
Below Cu: Hydroxide doesn’t exist

Question 6

Metal carbonate + heat

Answer 6

K - Na: No reaction
Ca - Cu: Decompose –> Metal oxide + carbon dioxide
Below Cu: Carbonate doesn’t exist

Question 7

Metal nitrate + heat

Answer 7

K - Na: Decompose –> Nitrate + oxygen
Ca - Cu: Decompose –> Metal oxide, nitrogen dioxide, oxygen
Below Cu: Decompose –> Metal, nitrogen dioxide, oxygen