A simple organic acid that gives vinegar its characteristic odor and flavor. Glacial acetic acid is pure acetic acid. Compare with hydrate . An addition compound contains two or more simpler compounds that can be packed in a definite ratio into a crystal. A dot is used to separate the compounds in the formula.
Hydrates are a common type of addition compound.
An oxide of an alkaline earth metal , which produces an alkaline solution in reaction with water. Compare with hydrocarbon and alkene . Alkane names end with -ane . Pure NH 3 is a colorless gas with a sharp, characteristic odor. It is easily liquified by pressure, and is very soluble in water.