Question

plz give me answer it's urgent​

Answer 1

are given the following substances:

(i) Barium chloride solution (ii) Copper sulphate solution

(iii) Copper powder and (iv) Ferrous sulphate crystals.

Write chemical equations for the reactions taking place when:

a. Barium chloride solution is mixed with copper sulphate solution and a white

precipitate is observed.

b. On heating, green ferrous sulphate crystals, reddish brown solid is left and a gas

having smell of burning sulphur is noticed.

c. On heating copper powder in air, the surface of copper powder becomes black.