THIS is a very large and important work, and one which cannot fail to be useful to the scientific chemist. It is divided into several parts, and contains, or rather consists of, tables of the elements ...

Substances can exist in three states of matter - solid, liquid and gas. Substances can change states. To change the state of a substance energy must be transferred to, or from, the substance. Phew! On ...

The state of a substance at a given temperature can be predicted if its melting point and boiling point are known. The melting point of oxygen is -218°C and its boiling point is -183°C. Predict the ...