Chemistry 1.0 / 5 based on 1 rating ? ChemistryGCSEAQA Created by: Rebecca CooperCreated on: 13-03-13 09:09 what do atoms contain? Protons, neutrons and electrons 1 of 14 Where are protons and neutrons found? In the nucleus 2 of 14 What is an atomic number? The number of protons in the nucleus 3 of 14 What is an mass number? The number of protons plus neutrons 4 of 14 What do the chemical equation show? Reactants 5 of 14 what is limestone? calcium carbonate (caCo3) 6 of 14 When calcium oxide and water react what is produced? Calcium Hydroxide 7 of 14 what is a metal ore? rock which contains enough metal to make worthwhile extracting the metal from it. 8 of 14 how can metal be extracted from its ore? chemically by reduction using carbon 9 of 14 metals which are more reactive than carbon have to be extracted by? using electolysis of molten compounds 10 of 14 what method of extracting aluminium is used? Electolysis 11 of 14 what is electrolysis? breaking down of a substance using electricity 12 of 14 what is a crude oil? A mixture of hydrocarbons 13 of 14 what is crude oil mostly? Alkanes 14 of 14
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