Chemistry: Year 10 Term 2: Chemical Cells/Batteries 0.0 / 5 ? ChemistryEnergy of reactions/Exothermic and endothermic reactionsGCSEAQA Created by: Charlotte HerondaleCreated on: 25-11-18 14:31 What happens to electrons in metals when they bond? (1) They are lost 1 of 13 A more reactive metal loses electrons...? (1) More easily 2 of 13 How can metals be used to make electricity in cells? (3) Placing 2 metals of different reactivity in an electrolyte 3 of 13 Electrons flow from which metal to which? (2) More --> less reactive metal 4 of 13 The more reactive metal is what? (1) Oxidised (loss) 5 of 13 Which electrode is this and why? (2) Negative as it loses electrons 6 of 13 The less reactive metal is what? (1) Reduced (gain) 7 of 13 Which electrode is this and why? (2) Positive as it accepts electrons 8 of 13 The voltage produced increases with what? (1) The difference in reactivity of the metals 9 of 13 Why can a cell only produce electricity for a certain amount of time? (2) The chemicals in the reaction run out and the reaction stops 10 of 13 Which type of batteries run out? (1) Alkaline 11 of 13 Which type of batteries don't run out? (1) Rechargeable 12 of 13 How can rechargeable batteries be recharged? (2) The reaction can reversed when an electrical current is applied 13 of 13
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