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OpenStudy (anonymous):
A chemical equation is balanced by changing or adding a. chemical symbols. b. coefficients. c. subscripts. d. reactants.
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OpenStudy (anonymous):
b
OpenStudy (anonymous):
coefficients. to balance: H2 + O2 ---> H20 so far there is one too many oxygen atom. so this is the balanced equation: 2H2 + O2 ----> 2H2O
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