Question

Name the following

i) Metal which reacts reversibly with steam

ii) Salt insoluble in all mineral acids

iii) Salt soluble in excess ammonium hydroxide

iv) Reaction where heat is liberated

v) Reaction where there is only one reactant present​

Answer 1

Answer:

°iron metal

°Barium sulphate

°Zinc chloride

°Exothermic reactions are ones that liberate heat energy

°decomposition reactions