Equations 0.0 / 5 ? ScienceEquationsGCSEAQA Created by: Cat91Created on: 03-05-18 20:34 Metal + oxygen -> Metal oxide 1 of 8 Metal + hydrochloric acid -> Metal chloride + hydrogen 2 of 8 Metal + sulpheric acid -> Metal sulphate + hydrogen 3 of 8 Thermal decomposition Calcium carbonate -> calcium oxide + carbon dioxide 4 of 8 Copper electrolysis anode Cu -> Cu + 2e 5 of 8 Copper electrolysis cathode Cu + 2e -> Cu 6 of 8 Rust word equation Iron + oxygen + water -> hydrated iron(III) oxide 7 of 8 Energy efficiency Total energy input -> useful energy output + waste energy output 8 of 8
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