Matching Pairs Reactions and chemical equatioOnline version Relate columns about this topic by José Aarón Lara Velázquez 1 Products 2 Replacement reactions 3 Decomposition reaction 4 5 Chemical reaction 6 Synthesis reaction 7 Reactants 8 Combustion reaction 9 Law of conservation of mass 10 Coefficient Matter is neither created nor destroy. They are the starting substances on a chemical reaction It's a number written in front of a reactant or a product. It's a chemical reaction in which a single compound breaks down into two or more elements or new compounds. It's a chemical reaction in which two or more substances (A and B) react to produce a single product (AB). It separates reactants from products. It's the process by which the atoms of one or more substances are rearrenged to form different substances. They involve the replacement of an element in a compound. They are the substances formed during a chemical reaction. It's a chemical reaction in which oxygen combines with a substance and releases energy in the form of heat and light.