Job Recruitment Website - Immigration policy - Valu immigrated to New Zealand.
Valu immigrated to New Zealand.
According to CO2+4H2→ energy +2H2O, each molecule in this energy contains 1 carbon atoms and 4 hydrogen atoms. When n= 1, the chemical formula in option A is CH4, which is consistent with the meaning of the question.
Options b, c and d do not meet the problem.
So choose: a.
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