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Y10 Acids and Bases

Year 10 Science - Acids and Bases

TermDefinition
acid A chemical substance which releases hydrogen ions (H+) and has a pH of less than 7.0.
alkali A base which can be dissolved (is soluble) in water.
base A chemical substance that will remove hydrogen ions from solution. It has a pH of more than 7.0.
chemical reaction A process that occurs when chemical substances are changed into new substances.
compound A substance made of more than one type of atom, chemically combined in a fixed ratio.
concentrated A solution that has a large number of particles dissolved in it.
corrosive A substance that will damage the surface of another substance.
density The amount of mass (weight) an object has, in relation to its volume (the space it takes up).
dilute A solution that contains a small number of particles dissolved in it.
indicator A substance which will change colour according to the pH.
ion An atom which has lost or gained electrons.
neutral A substance with a pH of 7.0. It is not an acid or a base.
neutralisation A chemical reaction that occurs when an acid and base are combined to result in a pH of 7.0.
salt A chemical compound containing a metal ion and a non-metal ion.
Created by: nztcowen
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