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science vocab rachel

science vocab

law of conservation of mass a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
physical change usually reversible change in the physical properties of a substance, as size or shape:
chemical reaction usually irreversible reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance
element one of a class of substances that cannot be separated into simpler substances by chemical means.
chemical formula representation of a substance using symbols for its constituent elements
element(diatomic) molecule molecules composed only of one atom, of either the same or different chemical elements
compound molecule molecules composed more than one atom
chemical equation the 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 side
chemical reaction a process that leads to the transformation of one set of chemical substances to another
reactants A substance that takes part in and undergoes change during a reaction.
products a substance that forms as a result of a chemical reaction
coefficient a number that is constant for a given substance, body, or process under certain specified conditions, serving as a measure of one of its properties
subscript Subscript in a chemical formula shows the amount of atoms of that type in each molecule.
Created by: h0404072