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'hs2' ??? Have you got this correct. Should it be H2S.,which is hydrogen sulphide. .

The are three atoms in H2S

2 x H = 2 x hydrogen

1 x S = 1 x sulphur.

hydrogen sulphide has the smell of 'rotten eggs', which is the gas that rotten eggs give off.

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lenpollock

Lvl 17
1y ago

What else can I help you with?