Question

In a chemical reaction one molecule of hydrogen sulphide gas reacts with two molecules of nitric acid the molecule of nitrogen dioxide and water and atoms of sulphur formed has a ratio of

Answer 1

Catalysts interact with reactants so the reaction can occur by an alternate pathway that has a lower activation energy. Activation energy is the energy needed to start a reaction. When activation energy is lower, more reactant particles have enough energy to react so the reaction goes faster.