You say right.But I don t know why the cacbon is excited.My friend say that "cacbon is excited by the Hydro".My other friend say that "we have provide energy about 1500 Centigrate for C and H to create CH4 following to the reaction C+H_CH4 ,so the C will be excited .Then the C will hybridize sp3."Im very embarrassed.I agree with the first opinion.And you?How do you think ?Im very happy when you reply.
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