Hydrocarbons {alkene}| {olefin} can have at least one double bond. Small alkenes have two carbons {ethylene} {ethene} or three carbons {propylene} {propene}. Alkenes are colorless, odorless, reactive, not polar, not acidic, not basic, and oxidizable or reducible. Alkenes with two to four carbons are gases. Alkenes with more than four carbons are liquids.
Alkanes can attach halides {alkyl halide}. Alkyl halides are colorful, smell powerful and bad, are very reactive, are polar, are not acidic or basic, and are not oxidizable or reducible. Alkyl halides are liquids, except for methyl halide gases. Alkyl halides are heavier than water.
Alkene substituents {allyl} can have three carbons and double bond at far end from carbon chain.
Ethylenes {vinyl group} can be side chains.
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0225