Question

White substance on heating decomposition to give brown fumes and a Residue in left behind a. name the salt b. write equation for decomposition reaction

Answer 1

Answer:

The white salt is Lead Nitrate or PbNO3.

Explanation:

when Lead Nitrate is heated it get decomposed into lead oxide and Nitrogen dioxide and oxygen gas is released.

The decomposition of the lead nitrate into lead oxide and oxygen gas is released with the brown fumes of Nitrogen dioxide.

The reaction can be written as following:-

2Pb(NO3)2 => 2PbO + 4NO2 + O2

Where NO2 is in reddish brown colour.

Answer 2

Heya mate ❣️

Here's ur answer!

a)Lead Nitrate (PbNO3)

b)2Pb(NO3)2→2PbO + NO2 + O2

Hope it helps uh!