What is the action of water on (a) sodium (b) magnesium, and (c) aluminium? Write equations of the chemical reaction involved.

What is the action of (a) Sodium on arsenic (b) Magnesium on bismuth

What is observed when a solution of sodium sulphate is added to a solution of barium chloride taken in a test tube? Write equation for the chemical reaction involved and name the type of reaction in this case.

What happens when Sodium is placed in water? Write word equations of the reactions involved.

(a). What happens when an acid reacts with a metal carbonate? Explaini with the help of an example. Write chemical equation of the reaction involved. (b). What happens when carbon dioxide gas is passed through lime water: (i). For a short time? (ii). for a considerable time? Write equations of teh reactions involved.

What happens when Hydrochloric acid is poured on aluminium foils? Write word equations of the reactions involved.

(a). What is the common name of sodium hydrogencarbonate? ltBrgt (b). What happens when a solution of sodium hydrogencarbonate is heated? Write equation of the reaction involved. (c) Explain why, sodium hydrogencarbonate is used as an antacid.

Write the formulae of sodium chloride and sodium carbonate. Explain why an aqueous solution of sodium chloride is neutral but an aqueous solutio of sodium carbonate is basic (or alkaline). Write chemical equations of the reactions involved.

What happens when a sample of sodium hydrogen carbonate is heated ? Write the equation of the reaction involved.

Explain reaction of sodium, magnesium and iron with water.