![]() ![]() The one element that is found in all organic compounds One or more substances are changed into entirely new substances because their atoms are rearrangedĪ pure substance made entirely of one type of atomĢ or more atoms bonded together by valence electronsĪ pure substance made of 2 or more types of atoms bonded together by valence electronsĭescribes a chemical reaction that produces heat energyĭescribes a chemical reaction that absorbs heat energy Matter is neither created nor destroyed.Īffects size, shape, state of matter, or color of a substance, but does not turn it into a new substance The mass of all reactants must equal the mass of all products. Substances produced during a chemical reaction ![]() Substances that take part in and are changed by a chemical reaction The mass and the charge must be balanced on both sides of the reaction. The process by which one or more substances change to produce one or more different substances.Ĭhemical formulas and symbols written to represent an entire reaction.Ī number placed in front of a chemical symbol or formula in order to balance the equation.Ī symbolic representation of a chemical reaction in which both sides of the equation contain equivalent numbers of atoms of each element. 8th Grade TermĪ number written below and to the right of a chemical symbol that shows the number of atoms.Ī shorthand notation that uses chemical symbols and subscripts to represent the type and number of atoms in the smallest unit of the substance. ![]()
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