Science, asked by nightingale33, 2 months ago

ans fastttttttttttttttttttt

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Answered by madhusudanchoudhury1

1

Sorry,don't know the answer

but can give a suggestion

O² means oxygen. so, I think it will not be oxygen

It can be he or CO

I am sorry for not answering as it is not of our grade question.

Hope your test goes good

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