Topic 7 0.0 / 5 ? ChemistryOxidation, reduction and redoxASAQA Created by: Jemma1494Created on: 03-06-21 12:32 Oxidation Loss of electrons Charge increases 1 of 14 Reduction Gain of electrons Charge decreases 2 of 14 Redox A reaction in which both oxidation and reduction take place 3 of 14 OILRIG Oxidation Is Loss Reduction Is Gain 4 of 14 Oxidising agent Atom that gains e- to allow other atoms to be oxidised 5 of 14 Reducing agent Atom that loses e- to allow other atoms to be reduced 6 of 14 Oxidation number of elements 0 7 of 14 Oxidation number of ions Charge of ion 8 of 14 Oxidation number of oxygen -2 9 of 14 Oxidation number if hydrogen +1 10 of 14 Oxidation number of fluorine -1 11 of 14 Oxidation number of sodium and potassium +1 (Group 1) 12 of 14 Oxidation number of magnesium and calcium +2 (Group 2) 13 of 14 How to balance a redox reaction Balance O2 by adding H2O Balance H by adding H+ ions Balance charges by adding e- 14 of 14
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