Question

Give a balanced equation for each of the following types of reactions
1. A thermal decomposition reaction of a salt which results in the formation of nitrogen gas​

Answer 1

hey mate your answer is simple

we know that A thermal decomposition reaction of a salt – which results in the formation of nitrogen gas.

The reaction is

( Pbno3 )2 ------> pbo +4 No2 + O2

It is the decomposition reaction

hope it will help you

Answer 2

REACTION :

$\mathsf{(NH_4)_2Cr_2O_7\xrightarrow{\Delta}Cr_2O_3+4H_2O+N_2}$

EXPLANATION :

Decomposition reaction is a reaction in which a complex substance breaks up to give two or more simpler substances .

The form of a decomposition reaction is :

AB → A + B .

AB is a complex substance and it breaks up to give A and B which are simpler substances .

Note that there maybe any number of products .

Thermal decomposition is a type of decomposition reaction which takes place due to heating .

In the above reaction ammonium dichromate was being heated which decomposed to give nitrogen gas , chromic oxide and water vapour as the products .

Orange ammonium dichromate changed to green coloured chromic oxide at the end of the reaction .