, 20.05.2020 18:58 kukisbae

# Why is a 13 placed in front of the oxygen on the perodic tableA) It is a subscript representing that there are 13 oxygen atoms in an oxygen moleculeB) It is a coefficient representing that there are 13 oxygen atoms in the reactantsC) It is a coefficient representing that there are 13 oxygen molecules in the reactantsD) It is a subscript representing that there are 13 oxygen atoms in the reactants

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