Any substance of which a fractionally small percentage strongly affects the rate of a chemical reaction.
A natural carbohydrate high polymer consisting of anhydroglucose units joined by an oxygen linkage to form long molecular chains that are essentially linear. Cellulose is a colourless solid, insoluble in water and organic solvents.
Prefixes used to describe the structure of geometrical isomers of organic compounds.
The change of state of a substance from the vapour to the liquid or solid form.