Question

Give an example of each of the following chemical changes.
(a) A photochemical reaction involving
(i) silver salt (ii) water
(b) A reaction involving
(i) blue solution
(ii) formation of dirty green precipitate
(c) Two gases combine to form a white solid.
(d) Two solids combine to form a liquid.
(e) A reaction where colour change is noticed.​

Answer 1

Answer:

Answer

(i)

Blue solution

Fe+CuSO

4(aq)

⟶

Green solution

FeSO

4

+Cu

(ii) FeSO

4

+2NaOH⟶

Dirty greenppt.

Fe(OH)

2

+Na

2

SO

4(aq)