Question

a decomposition reaction which does not require heat​

Answer 1

Answer:

Ag +Cl2 =AgCl2

Hope it helps you

Answer 2

Answer: 2H₂O (l) →2H₂ (g) +O₂(g)

2AgBr (s)→ 2Ag(s) +Br₂(g)

Explanation: 2H₂O on passing electricity decomposes into 2H₂+ O₂. On the arrow write electricity. This reaction is electrical decomposition which does not require heat energy.

Similarly silver bromide in sunlight decomposes into silver and bromine.

Write sunlight on the arrow. This is known as light decomposition and does not require heat energy.