
Write a balanced chemical equation for the following reaction:
Ammonium sulphate from ammonia and dilute sulphuric acid.

Important Questions on Practice Paper-3
Write a balanced chemical equation for the following reaction:
Sodium chloride from sodium carbonate solution and dilute hydrochloric acid.

State one observation for the following:
When hydrochloric acid is added to silver nitrate solution.

State one observation for the following:
When copper sulphide is treated with dilute hydrochloric acid.

State one observation for the following:
When ammonium hydroxide is added to ferrous hydroxide solution.

State one observation for the following:
When concentrated nitric acid is added to copper.

State one observation for the following:
When hydrogen sulphide gas is passed in a bottle containing concentrated sulphuric acid.

Calculate the weight of atoms of sodium.

Calculate the weight of atoms of sodium.
