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Madeline's Vocab

Law of Conservation of Mars a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system.
Physical Change a change from one state (solid or liquid or gas) to another without a change in chemical composition.
Chemical Change (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved.
Element one of a class of substances that cannot be separated into simpler substances by chemical means.
Chemical Formula a representation of a substance using symbols for its constituent elements
Element (diatomic) molecule one that is composed of atoms of either... in a molecule. Nitrogen, Fluorine, Oxygen, Iodine are all diatomic
Compound molecule A molecule is an electrically neutral group of two or more atoms held together by covalent chemical bonds.
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.The coefficients next to the symbols.
Chemical Reaction A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Reactions (chemical equations) (starting materials)on the left side of the equation.
Products (chemical equations) (resulting substance)on the right side of the equation.
Coefficient (in a chemical equation) The coefficients next to the symbols and formulae of entities are the absolute values of the stoichiometric numbers
Subscript (in a chemical equation) The subscripts tell you how many atoms of each element are in the equation.
Created by: G0403306