Chemistry

Each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon

 Any saturated aliphatic hydrocarbon with the general formula CnH2n+2

Any of a series of unsaturated, open chain hydrocarbons with one or more carbon-carbon double bonds, having the general formula CnH2n

any unsaturated aliphatic hydrocarbon that has a formula of the type CnH2n-2

Any of two or more substances that are composed of the same elements in the same proportions but differ in properties because of differences in the arrangement of atoms.

An atom or group of atoms, such as a carboxyl group, that replaces hydrogen in an organic compound and that defines the structure of a family of compounds and determines the properties of the family.

Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule.

A molecule that can combine with others to form a polymer

A system in which microscopically visible particles are dispersed throughout a less dense liquid or gas from which they are easily filtered but not easily settled because of system viscocity or molecular interactions.

The particulate matter so dispersed.

Capable of dissolving another substance.

A substance dissolved in another substance, usually the component of a solution present in the lesser amount.

Relating to, similar to, containing, or dissolved in water; watery.

The molar concentration of a solution expressed as a number of moles of solute per liter of solution.

The molal concentration of a solute, usually expressed as the number of moles of solute per 1,000 grams of solvent.

That can be mixed in all proportions. Used of liquids.

 A chemical compound that ionizes when dissolved or molten to produce an electrically conductive medium.

One of two or more atoms having the same atomic number but different mass numbers.

Any of two or more kinds of atoms having the same atomic mass but different atomic numbers.

A proton or a neutron, especially as part of an atomic nucleus