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Dethloff Period1


Define Law of Conservation of Mass states that in a chemical reaction, the mass of the products equals the mass of the reactants.
Define Physical Change a change from one state (solid,liquid or gas) to another without a change in chemical composition.
Define Chemical Change when a new substance is formed through a chemical reaction
Define Element a substance that cannot be broken down by chemical means
Define Element (Diatomic) Molecule molecules that are composed only of two atoms, of either the same or different chemical elements
Define Compound Molecule is a molecule that contains at least two different elements.
Define Chemical Equation is symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand
Define Chemical Reaction A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
Define Reactants (in a chemical equation) A substance that takes part in and undergoes change during a reaction
Define Products (in a chemical equation) A product is a substance that is formed as the result of a chemical reaction.
Define Coefficient (in a chemical equation) The number of molecules of reactants or products
Define Subscript (in a chemical equation) subscripts indicate the ratio of elements
Created by: C0708369