chemistry you 3.0 / 5 based on 1 rating ? ChemistryGCSEAll boards Created by: RhyannaCreated on: 27-04-11 13:43 what PH is neutral 7 1 of 5 what is an isotope differnt atomic forms of the same elerment 2 of 5 what is a exothermic reaction a reaction that gives out heat energy 3 of 5 what is "atom economy" % of reactants changed to useful products 4 of 5 what are moles the name given to a certain number 5 of 5
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