Atoms and Reactions 0.0 / 5 ? ChemistryAtomsGCSEEdexcel Created by: Humaira KaziCreated on: 17-04-14 11:45 Conservation of matter The mass of all the reactants added together at the start of the reaction is the same as the mass of all the products at a end of a reaction. 1 of 5 Chemical properties How something behaves in a chemical reaction e.g. How easily something burns or how something reacts with acid. 2 of 5 Physical properties Examples are : solubility, melting point, density, colour. 3 of 5 Precipitation When two dissolved chemicals react to form a solid. 4 of 5 Thermal decomposition When a substance breaks into one or more substance when heated. 5 of 5
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