Hydrogen Chloride - Acidic Properties of Its Solution

reaction with metals, their oxides, hydroxides and carbonates to give their chlorides;
decomposition of carbonates, hydrogen carbonates, sulphides, sulphites, thiosulphates and nitrates

Convert two soluble metallic nitrates to insoluble metallic chlorides using dil. HCl.

State the composition of aqua regia.

State one relevant observation for given reactions:

Action of dilute Hydrochloric acid on iron (II) sulfide.

State which component is the oxidizing agent in aqua regia.

Write an equation for the reaction of aqueous hydrochloric acid on zinc carbonate.

Write an equation for the reaction of aqueous hydrochloric acid on copper oxide.

Write an equation for the reaction of aqueous hydrochloric acid on caustic soda solution.

Write an equation for the reaction of aqueous hydrochloric acid on magnesium foil.