Two chemical reactions are described below. (i) Nitrogen and hydrogen react to form ammonia., give A) The valence of each of the atoms involved in the reaction., B) The Lewis structure of the product that is formed.

Two chemical reactions are described below.(ii) Carbon and hydrogen bond together to form a molecule of methane (CH4). give A) The valence of each of the atoms involved in the reaction.,B) The Lewis structure of the product that is formed.

The correct structure of the product A formed in the reaction

Valencies of nitrogen and hydrogen and 3 and 1 respectively. The formula of ammonia molecules formed by these two atoms

3 litres each of Nitrogen and Hydrogen measured at STP are allowed to react together. Find the volumes of the gases after the reaction and also the weight of Ammonia formed in the reaction.