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  • qais
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2016-04-30T09:39:54+05:30
Co2S3 + 3H2 ---------> 2Co +3H2S
Here Co is cobalt.
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C is not balanced but O is balanced !!
that is not C...that is Co, means cobalt
it has its own valency ?
if it has its own valency, so you're right.
yes..cobalt is another element...and having it's own valency