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No such compound as 'h2s'.

If you mean ' H2S'. then it is hydrogen sulphide.

NB . When writing elemental symbols in a formula, single letter symbols are ALWAYS a CAPITAL letter.

Hence

Hydrogen is 'H' ; not 'h'

Similrly Sulphur is 'S' . not 's'.

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lenpollock

Lvl 16
2mo ago

What else can I help you with?