H2CO2 or CH2O2?
Is it correctly H2CO2 or CH2O2? Or can both be used?
(1 votes)
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Go both. More meaningful, however, is HCOOH, because it can be seen directly that it is formic acid. Although no other isomer is possible here, this can be quite possible in the case of compounds having more atoms involved. See, for example, C2H6O. This can be ethanol or dimethyl ether. Both have these formulas. But if you write C2H5OH you can see that ethanol is meant.