AS Chemistry Topic 3 - Redox 1 0.0 / 5 ? ChemistryRedoxASEdexcel Created by: TobyHill5Created on: 29-04-18 14:26 Losing electrons oxidation 1 of 19 reduction is _____ of electrons gain 2 of 19 half equations an ionic equation used to describe the gain/loss or electrons during a redox reaction 3 of 19 all reactions in which atoms/molecules/ions GAIN electrons reduction 4 of 19 oxidation makes the oxidation number of an element more......... positive (bigger) 5 of 19 the reaction that makes the oxidation number of an element more negative reduction 6 of 19 the oxidation number of all uncombined elements is....... 0 7 of 19 in ions made of 1 ion only, the oxidation number of the element is always....... the same as the charge on the ion 8 of 19 the sum of oxidation numbers in a neutral compound is...... 0 9 of 19 the sum of oxidation numbers for an ion is.......... the charge on the ion 10 of 19 What is the oxidation number of Nitrogen in NH4+ -3 11 of 19 What is the oxidation number of Sulphur in SO4^2- +6 12 of 19 Where two atoms are linked by covalent bonds, the atom with the negative oxidation state is the atom......... that is the most electronegative 13 of 19 oxidation states the states of oxidation/reduction, shown by an element in its chemistry 14 of 19 -ide both elements named are the only elements in the compound 15 of 19 -ic the central atom has the higher oxidation number 16 of 19 a chemical reagent which can oxidise other atoms/molecules/ions by taking electrons away from them and being reduced themselves oxidising agents 17 of 19 reducing agent a chemical reagent which can oxidise other atoms/molecules/ions by taking electrons away from them and being reduced themselves 18 of 19 a reaction in which an element in a single species is simultaneously oxidised and reduced disproportionation 19 of 19
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