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what is the meaning of H2S...?

Sagot :

Hydrogen Sulfide-It is the chemical compound with symbol H2S. It is a foul, colorless gas that smells like rotten eggs and it is heavier than air, very poisonous, corrosive flammable and explosive.
hydrogen sulfide- a colorless poisonous gas with a smell of rotten eggs, made by the action of acids on sulfides.

>Hope it helps
don't copy my answer,it is based on my mind !!
From: TaengPark