Write down the reaction between sodium suphate solution and barium chloride solution. What type of a reaction is this?

Write the balanced chemical equation for the reaction between lead metal and copper chloride solution. What type of reaction is this?

write down the relation between physics and technology.

Write down the formulae of Sodium oxide.

Write down the difference between mass and moment of inertia.

List at least four distinuishing points between true solution and collodial solution.

Write balanced chemical eqautions and state symbols for the following reactions . Solutions of barium chloride and sodium sulphate in water react to give insoulble barium sulphate and the solution of sodium chloride.

Write the reaction of thermal decomposition of sodium azide.

Account for the following observations: Methylamine solution in water reacts with ferric chloride solution to give a precipitate of ferric hydroxide.