Chemical compound
* Many chemical compounds are aromatic rings with other things attached
  - can be dangerous but are safe if they are used the right way
  - exist in two forms, which are mirror images
* Most chemical compounds are formed by reaction.
* Most chemical compounds compose of atoms
  - oxygen atoms
* Most chemical compounds consist of atoms
* Most chemical compounds have effects
  - negative effects
  - inhibit oxidation
  - play roles
* Most chemical compounds remain in atmospheres
  - upper atmospheres
  - show characteristics
  - support metabolism
  - use in treatments
* Some chemical compounds accumulate in animals
  - tissue
  - affect humans
  - are made of nitrogen
* Some chemical compounds are produced by fungi
  - glands
  - very strong
* Some chemical compounds cause fevers
  - problems
* Some chemical compounds consist of magnesium
  - silicon
  - contain oxygen
* Some chemical compounds contribute to acid rain
  - flavour
* Some chemical compounds destroy layers
  - ozone layers
  - deter animals
* Some chemical compounds find in cycads
  - leaves
  - plants
  - wood
  - have impact
  - inhibit growth
* Some chemical compounds interfere with chemical reaction
* Some chemical compounds produce flavor
  - spicy flavor
* Some chemical compounds release energy
  - heat energy
* Some chemical compounds stimulate cell growth
* are changed by a chemical reaction
  - chemical substances
  - made up of more than one kind of atom
* can break down into simpler substances.
* compose all of the living and non-living aspects of our environment.
* containing fluorine ions are called fluorides
  - the phosphite ion are called phosphites
* dissolve differently in each liquid.
* have both a common name and a scientific name
* show a bewildering array of characteristics
+ Aromatic hydrocarbon, Types of aromatic compounds, Substituted aromatics: Organic compounds
  * Sometimes people use the word 'chemical' just to talk about compounds that are dangerous. Many chemical compounds can be dangerous but are safe if they are used the right way. We all use chemicals every day and these chemicals have to be tested to make sure they are safe. Most dangerous chemicals are only used by scientists who have had special training in how to handle and use them. These chemicals might be poisonous, corrosive, explosive, they may catch fire easily, or they may react with other substances.
+ Chemistry, Concepts of chemistry, Basic concepts
  * In a compound, two or more atoms are joined together to form a molecule. The tiniest speck of dust or drop of liquid, that one can see is made up of many millions or billions of these molecules. Mixtures are substances where chemicals are mixed but not reacted. An example would be mixing sand and salt. This can be undone again to produce salt and sand separately. Chemical compounds are changed by a chemical reaction. An example would be heating sodium bicarbonate, common baking soda. It will make water, carbon dioxide, and sodium carbonate. This reaction cannot be undone.
+ Fluorine, Properties, Chemical compounds: Nonmetals :: Halogens
+ Phosphite: Phosphorus compounds
  * Phosphite' is an ion. Chemical compounds containing the phosphite ion are called phosphites. Phosphites are the salts of phosphorous acid. They are poisonous. They are reducing agents. An example would be sodium phosphite.

### chemical compounds:

Abscisic acid
* helps leaves respond to drought.
* is chemical compounds
  - plant hormones
* promotes stomatal closure and bud and seed dormancy.
* stimulates potassium to flow from adjacents cells into both guard cells.