1) Shows the number of atoms of each element in a compound a) coefficient b) subscript c) superscript d) reactants e) products f) arrow 2) Elements on the right side of the arrow in a chemical reaction a) reactants b) products c) subscript d) superscript e) arrow f) ceofficient 3) The only thing that can be changed when balancing an equation a) subscript b) superscript c) reactant d) coefficient e) product f) yields 4) ___Al + ___O2   YIELDS ____ Al2O3 a) 2, 2, 3 b) 4, 3, 2 c) 4, 2, 2 d) 4, 2, 1 e) 3, 2, 1 f) 3, 4, 1 5) ____ HgO YIELDS ___ Hg + ___ O2 a) 2, 2, 1 b) 2, 2, 2, c) 2, 1,,2 d) 2, 3 ,4 e) 1, 2, 1 f) 4, 2, 1

Balance Chemical Equations Review

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