10/20/2026 Tuesday Lecture

Hydrate

A compound with water molecules attached to the structure

Anhydrous

The condition of a hydrate when water molecules are driven off

Hydrocarbon

A compound was only carbon and hydrogen. Atoms

Alkane

A hydrocarbon with only carbon-carbon single bonds

Alkene

A hydrocarbon with at least one carbon-carbon double bond

Alkyne

A hydrocarbon with at least one in carbon-carbon triple bond

Functional group

And atom, or grouping of atoms attached to the carbon chain of a molecule which gives the molecule its characteristic properties (hydroxyl, carboxyl)

Naming binary molecular compounds

1. The first word is the name or the first element unchanged with a prefix

2. The second road is the stem of the name for the second element with an -ide and with a prefix

Two important exceptions to naming binary molecular compounds

1. If the first element has only one atom do not put the prefix mono-

2. If there is an ao or oo vowel combination, the first letter is dropped in writing and in saying the word

Compounds that have their common name as the official name

Water (H20) and Ammonia (NH3)

A compound that is a hydrate will…

NOT necessarily look wet

The name for a hydrated compound has…

The extra word hydrate with a prefix

Vinegar is a dilute solution of

Ethanoic acid

Study polyatomic ions, prefixes, and examples

Good luck