chemical compound
Two elements combined
A chemical compound is a substance formed when atoms of two or more different elements bond together in fixed proportions.
Water is a compound of hydrogen and oxygen; table salt is sodium and chlorine.
Compounds have properties distinct from their component elements—sodium is explosive, chlorine is toxic, but together they season food.
Distinguished from mixtures, where substances combine without chemical bonding.
Bonded atomic group
- formulaFixed method or notation
- synthesisCombining parts into whole
- reactivityTendency to chemically combine
- solubilityDissolving potential in liquid
bonding · covalent · ionic · organic · inorganic · polymer · monomer · isomer
Clear essential liquid
- ammoniaAcrid nitrogen-hydrogen gas
- methaneSimplest alkane fuel
- ethanolDrinkable volatile spirit
- glucosePrimary cellular fuel
sodium chloride · carbon dioxide · sulfuric acid · aspirin · caffeine · penicillin · chlorophyll · hemoglobin
molecule
Bonded atomic group
- formulaFixed method or notation
- synthesisCombining parts into whole
- reactivityTendency to chemically combine
solubility · bonding · covalent · ionic · organic · inorganic · polymer · monomer · isomer · crystalline
water
Clear essential liquid
glucose · sodium chloride · carbon dioxide · sulfuric acid · aspirin · caffeine · penicillin · chlorophyll · hemoglobin · cellulose
- compoundswater, ethane, propane, butane, benzene
- fire safetyfire alarms, fire drill, fire extinguishers, smoke detectors, fire drills
chemical compoundelement
Basic substance or factor
chemical element · mixture · solution · suspension · colloid
chemical compoundelement
Basic substance or factor
atom · subatomic particle · ion · molecule
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