Glossary of 0654 chemistry

a substance that dissolves in water to produce a solution that turns litmus red, has a pH lower than 7 and contains an excess of H+ ions

a molecule or ion that is able to donate a proton (H+ ion) to a base

a series of organic compounds containing the functional group –OH and with the general formula CnH2n+1OH

a base that is soluble in water

a substance that dissolves in water to produce a solution that turns litmus blue, has a pH higher than 7 and contains an excess of OH– ions

saturated hydrocarbons containing only single bonds between the carbon atoms in the chain and with the general molecular formula CnH2n+2

unsaturated hydrocarbons containing a C=C double bond somewhere in the chain and with the general formula CnH2n

a hydroxide or metal oxide that reacts with both an acid and an alkali to give a salt and water

a substance that reacts with an acid to form a salt and water only

a molecule or ion that is able to accept a proton