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A catalyst lowers the activation energy of a reaction and therefore increases the rate of reaction. The catalysts reacts with the reactants but is regenerated again in the reaction so it is not used up.

If you add an acid to a metal oxide you get a salt and water. For example: HCl + NaOH ---> NaCl + H 2 O

Enzymes are known as biological catalyst and work by lowering the activation energy of a reaction. They do this by providing an alternative pathway which speeds up the reaction without the catalyst undergoin...

The relative formula mass of a compound is simple to calculate once you know how. It is very similar to the atomic mass of an element, except instead of only being the mass of that one element, it is the mas...

To explain a racemic mixture it is firstly necessary to explain what an enantiomer is. Enantiomers are stereoisomers that are non-superimposable mirror images of each other. An enantiomer has no plane of sym...