A) Name a possible metal carbonate M, give a reason for your choice. b) Write a balanced chemical equation for the reaction between the metal carbonate M and the acid.

Here are the solutions to the questions:

Question 13:

a) Name a possible metal carbonate M, give a reason for your choice.

• Possible metal carbonate M: Calcium carbonate ($\text{CaCO}_3$).
• Reason: It is a common, relatively unreactive metal carbonate that readily reacts with acids to produce carbon dioxide gas.

b) Write a balanced chemical equation for the reaction between the metal carbonate M and the acid.

• Assuming M is calcium carbonate and the acid is hydrochloric acid: $$$$