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science10/1

chemistry

QuestionAnswer
law of conservation of mass the mass of the of the products of a chemical reaction must bee the same as the mass of the reactant.
phiscal change phiscal changes in a substance affect only phisical properties.
chemical change resulting in new substance that have properties different from those of the original substances.
element substance that can not be broken down into simpler substances.
chemical formula short hand form for writing what reactants are used and what products are formed in a chemical reaction
element molecule 2 or more elements together
compound molecule same amount of molecules together
chemical equation short hand form for writing what reactannts are used and what products are formed in a chemical reaction.
chemical reaction process that produces chemical change resulting in new substance that have different properties different from those of the original substancses
reactants substanse that exist befor a chemical reaction begins.
products substance that forms as a result of a chemical reaction.
coefficient a number of substances that is constant for a given body
subsript written below
Created by: s0811426