【判断题】【消耗次数:1】
离解能:要使1molA-B双原子分子(气态)共价键解离为原子(气态)时所需要的能量也就是键能,或叫键的离解能。
正确
错误
参考答案:
复制
纠错
相关题目
【判断题】 多原子分子,键能其实就是键的离解能。
①  正确
②  错误
【判断题】 键能是由原子形成共价键所放出的能量,或共价键断裂成两个原子所吸收的能量。
①  正确
②  错误
【判断题】 共价键的极性判断就看形成共价键的两个原子是否相同,若相同,则为非极性共价键,若不同,则为极性共价键。
①  正确
②  错误
【单选题】 原子键通过( )所形成的的化学键,称为共价键。
①  氢键
②  范德华力
③  共用电子对
④  阴阳离子
【判断题】 形成共价键的两个原子核之间距离称为键长。
①  正确
②  错误
【判断题】 决定共价键极性强弱的主要因素是成键原子间电负性差。
①  正确
②  错误
【多选题】 原子价键包括()。
①  A.离子键
②  B.共价键
③  C.金属键
④  D.分子键
【判断题】 C=C 的键能是 C—C 键能的两倍。
①  正确
②  错误
【单选题】 在分子中衡量原子吸引成键电子的能力用
①  电离能
②  电子亲合能
③  电负性
④  解离能
【判断题】 原子通过化学键结合成分子,所以化学键是分子中相邻原子间较强烈的结合力。
①  正确
②  错误
随机题目
【单选题】 3.A hunter is a man who animals.
①  catch
②  catches
③  will catch
④  was catching
【单选题】 2.She the door before she goes away.
①  had locked
②  is locking
③  has locked
④  was locking
【单选题】 4.What if I drink this?
①  happens
②  is happening
③  will happen
④  is happened
【单选题】 10.Now Mike isn’t here. He _________ Mr. Green’s. Perhaps he _______ back in a few minutes.
①  went to; is coming
②  has gone to; will come
③  has been to ; will be
④  is going to; has come
【单选题】 6.Look out! That tree _______ fall down.
①  is going to
②  will be
③  shall
④  would
【单选题】 8.They can’t leave until they ______ their work.
①  did
②  are doing
③  have done
④  has done
【单选题】 1.When I saw Mary, she on the piano.
①  is playing
②  plays
③  was playing
④  played
【单选题】 7. My uncle __________ to see me. He’ll be there soon.
①  comes
②  is coming
③  had come
④  came
【单选题】 14.They ______ lunch at home every day.
①  have not
②  didnt have
③  dont have
④  have not any
【单选题】 6.Sam was ill yesterday, so he _____ his home work.
①  didn’t
②  not did
③  didn’t do
④  didn’t did