Some word/words are missing in the following  statements. You are required to rewrite the statement in the correct form using the appropriate word/words:

Agua regia contains one party by volume of nitric acid and three parts of volume of hydrochloric acid.

Give reason for the following:

Hydrogen chloride gas cannot be dried over quick lime.

Give balanced equation for the following reaction:

Concentrated hydrochloric acid and potassium permanganate solution.

Give balanced equation for the following reaction:

Silver nitrate solution and sodium chloride solution

Refer to the flow chart diagram below and give balanced equation with condition any, for the following conversion A to D.