admin | Thu, 09/07/2017 - 06:57
They mean different things. Hydro[sulfur/carbon]ic would refer to the binary acids, of which H2S is real, but H4C is not, and is a nonacidic molecule called methane, and written as CH4.
The rule of thumb is that if the salt ends with -ic, that acid is hydro[______]ic acid.
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