Give balance equations for -i. A direct combination reaction involving two elements, one of which is a non metal ii. A thermal decomposition reaction involving heat on limestone [calcium carbonate] iii. An electrolytic decombosition reaction involving a neutral liquid iv. A displacement reaction involving a metal above hydrogen in the activity series with copper [II] sulphate solution v. A double decomposition neutralization reaction involving an acid & a base vi. A white precipitate obtained during a double decomposition reaction involving a silver salt with a sodium salt.