A.一C(CH3)3 B.CH3CH2CH20-12-- C.(CH3)2CHCH2-- D.CH3CH(CH2CH3)一
A.C2H2 B.C2H4 C.C2H6 D.C6H6
A.質(zhì)量為12g B.物質(zhì)的量為6mol C.體積為22.4L/mol D.物質(zhì)的量為12mol