AQA Trilogy GCSE Science - Science
Mission Objectives
State the products of reactions between metals and acids
Write word and balanced symbol equations for reactions of some metals and acids
Identify which species are oxidised and which are reduced in given chemical equations (HT only)
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Words and meanings to learn
salt
a compound formed when the hydrogen ion (H⁺) of an acid is replaced by a metal ion or ammonium ion (NH₄⁺), usually produced in a reaction between an acid and a base or metal
ion
an atom or molecule that has gained or lost one or more electrons, resulting in a positive (cation) or negative (anion) charge
oxidation
a process where a substance gains oxygen or loses electrons
reduction
a process where a substance loses oxygen or gains electrons
equation
a symbolic representation of a chemical reaction, showing the reactants and products, and often including the state of matter and balance of atoms and charge
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