Question

A white salt upon heating decomposes to give brown fumes and a residue of a left behind . write the equation for the decomposition reaction .​

Answer 1

I hope you understand thanks

Answer 2

The compound is lead nitrate.

Brown fumes is nitrogen dioxide

Yellow residue is lead oxide

The reaction is:

2Pb(NO3)2 → 2PbO + O2 + 4NO2