General chemistry

General chemistry

Contributors in General chemistry

General chemistry

The mixing of two substances caused by random molecular motions. Gases diffuse very quickly; liquids diffuse much more slowly, and solids diffuse at very slow (but often measurable) rates. Molecular ...

Metalloid

Chemistry; General chemistry

An element with both metallic and nonmetallic properties. Examples are silicon, arsenic, and germanium.

Stereoisomer

Chemistry; General chemistry

Molecules with the same atoms and bond structure, but different three dimensional arrangements of atoms. For example, the CH3 groups in CH3CH=CHCH3 can be placed on the same side of the double bond ...

Measurement

Chemistry; General chemistry

Measurement is the collection of quantitative data. Measurement involves comparison of the quantity of interest with a standard called a unit. The comparison is never perfect. As a result, ...

Boron

Chemistry; General chemistry

Element 5, atomic weight 10.811. Hard yellow crystals or brown amorphous powder, used as a neutron absorber in nuclear chemistry and as a hardener in alloys .

Hydrazine

Chemistry; General chemistry

A colorless, fuming, corrosive liquid that is a powerful reducing agent. NH2NH2 is used in jet and rocket fuels, and as an intermediate in the manufacture of agricultural, textile, photographic, and ...