State the observation for each of the following:
Dilute hydrochloric acid is added to lead nitrate crystals.

State one appropriate observation for each of the following: A few drops of dilute hydrochloric acid are added to silver nitrate solution, followed by addition of ammonium hydroxide solution.

State one appropriate observation for the following: When dilute hydrochloric acid is added to sodium carbonate crystals.

State one appropriate observation for the following: When dilute hydrochloric acid is added to calcium carbonate crystals.

Write equations for the following: Dilute hydrochloric acid and lead nitrate.

State one appropriate observation for the following: Dilute hydrochloric acid is added to copper carbonate.

State your observation in each of the following cases : (i) When dilute hydrochloric acid is added to sodium carbonate crystals.

State any one observation for each of the Dilute Hydrochloric acid is added to Silver Nitrate solution. (i

State one observation for each of the following: Excess ammonium hydroxide solution is added to lead nitrate solution.

State one observation for each of the following: Excess ammonium hydroxide solution is added to lead nitrate solution.

Write the balanced chemical equation for the following: (1) Action of Hydrochloric acid on sodium bicarbonate. (2) Identify the gas evolved and give the chemical test in each of the following cases : Dilute Hydrochloric acid is added to Lead nitrate solution and the mixture is heated.