(1)甲烷中存在4个碳氢键,甲烷的结构式为:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/50da81cb39dbb6fd559d01970a24ab18962b37b8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
,故答案为:甲烷中存在4个碳氢键,甲烷的结构式为:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/50da81cb39dbb6fd559d01970a24ab18962b37b8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
;
(2)水分子中存在两个氧氢键,氧与氢原子间有一个共用电子对,结构式为:H-O-H,
故答案为:H-O-H;
(3)氯气分子中氯原子间有一个共用电子对,氯气的结构式为:Cl-Cl,故答案为:Cl-Cl;
(4)氮气分子中存在氮氮三键,氮气的结构式为:N≡N;故答案为:N≡N;
(5)二氧化碳为直线型结构,分子中存在两个碳氧双键,二氧化碳的结构式为:O=C=O;故答案为:O=C=O;
(6)氨气中存在3个氮氢键,氨气的结构式为:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b90e7bec54e736d182f368b998504fc2d462699b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
;故答案为:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b90e7bec54e736d182f368b998504fc2d462699b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
.