题目内容

Which of the following statements about ethene, C2H4, is ()? ()

A. The H-C-H bond angles are approximately 109.5°.
B. All of the hydrogen atoms are in the same plane.
C. There is a total of five sigma bonds.
D. The carbon atoms are sp2 hybridized.
E. The H-C-H bond angles are approximately 120°.

查看答案

搜索结果不匹配？点我反馈

更多问题

Give the possibilities in structure for a compound with a formula of C6H10. ()

A. no rings, no double bonds, no triple bonds
B. one double bond, or one ring
C. two rings, two double bonds, one double bond + one ring, or one triple bond
D. three rings, three double bonds, two double bonds + one ring, one ring + two double bonds, one triple bond + one ring, or one double bond + one ring
E. benzene

查看答案

Which of the following statements about ethene, C2H4, is ()? ()

A. The H-C-H bond angles are approximately 109.5°. B. All of the hydrogen atoms are in the same plane. C. There is a total of five sigma bonds. D. The carbon atoms are sp2 hybridized. E. The H-C-H bond angles are approximately 120°.

Give the possibilities in structure for a compound with a formula of C6H10. ()

写出英文名: 氟:______ ；氟甲烷: ______ methane

写出英文名: 碘:______ ;碘甲烷:______ methane

写出英文名: 溴:______ ;溴甲烷：______ methane

A. The H-C-H bond angles are approximately 109.5°.
B. All of the hydrogen atoms are in the same plane.
C. There is a total of five sigma bonds.
D. The carbon atoms are sp2 hybridized.
E. The H-C-H bond angles are approximately 120°.

写出英文名: 氟: ；氟甲烷: methane

写出英文名: 碘: ;碘甲烷: methane

写出英文名: 溴: ;溴甲烷： methane