What happens when a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide? Write the chemical equation of the reaction which takes place.

What happens when an acid reacts with a metal hydrogencarbonate? Write equation of the reaction which takes place.

State what happens when a concentrated solution of sodium chloride (brine) is electrolysed ? Name the process. Write the equation of the reaction involved. Write the names of product obtained. Mention one use of each product.

What happens when sodium reacts with ammonia ?

What happens when an aqueous solution of sodium sulphate reacts with an aqueous solution of barium chloride? State the physical conditions of reactants in which the reaction between them will not take place. Write the balanced chemical equation for the reaction and name the type of reaction.

What happens when silver nitrate solution is added to sodium chloride solution ? (a) Write the equation for he reaction which takes place. (b) Name the type of reaction involved.

(a). What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water. (b). Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?

Electrolysis of molten Sodium Chloride (NaCI) is conducted: Write the chemical equation fo the reaction taking place at the cathode.