中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.下列化学式中，最外层含有一对未成键电子的是
| A: NH3 |
| B: H2O |
| C: HCl |
| D: CH4 |
一次做对，真牛！
+5奖励规则>
- 提示1：5YiG5Yir5YaZ5Ye65ZCE54mp6LSo55qE55S15a2Q5byP5Y2z5Y+v55yL5Ye644CC
- 答案：QQ==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.下列反应过程中，同时有离子键、极性共价键和非极性共价键的断裂和形成的反应是
| A: NH4Cl 加热 NH3↑+HCl↑ |
| B: NH3 + CO2+ H2O == NH4HCO3 |
| C: 2NaOH + Cl2== NaCl + NaClO + H2O |
| D: 2Na2O2+ 2CO2 == 2Na2CO3 + O2 |
一次做对，真牛！
+5奖励规则>
- 提示1：5pys6aKY5Lit5Y+q6KaB57uG5b+D5YiG6L6o5ZCE5Y+N5bqU5Lit55qE5ZCE54mp6LSo5piv56a75a2Q6ZSu6L+Y5piv5YWx5Lu36ZSu5Y2z5Y+v44CC
- 提示2：6YeR5bGe5LiO6Z2e6YeR5bGe5LmL6Ze044CB6ZO155uQ5LiO6YW45qC55LmL6Ze05b2i5oiQ55qE6ZSu5aSn5aSa5Li656a75a2Q6ZSu77yM6ICM6Z2e6YeR5bGe5LmL6Ze05b2i5oiQ55qE5YyW5a2m6ZSu5aSn5aSa5Li65YWx5Lu36ZSu44CC
- 答案：RA==
QeS4reayoeaciemdnuaegeaAp+mUrueahOaWreijguWSjOeUn+aIkO+8mzxicj5C5Lit5Lmf5rKh5pyJ6Z2e5p6B5oCn6ZSu55qE5pat6KOC5ZKM55Sf5oiQ77ybPGJyPkPkuK3mnInnprvlrZDplK7jgIHmnoHmgKfplK7lkozpnZ7mnoHmgKfplK7nmoTmlq3oo4LvvIzkvYbnvLrlsJHpnZ7mnoHmgKfplK7nmoTnlJ/miJDvvJs8YnI+ROa7oei2s+aJgOacieadoeS7tuOAgg==
本课配套习题挑战模式3/5
多选题
难度系数：
3.人在地球上生活而不能脱离地球，是因为地球对人有吸引力。同样，原子之间能自动结合主要是因为它们之间存在着强烈的相互作用——化学键，化学键使得100多种元素组成了世界的万物。关于化学键的下列叙述正确的是
| A: 离子化合物中可能含共价键，共价化合物中不含离子键 |
| B: 共价化合物中可能含离子键，离子化合物中只含离子键 |
| C: 构成单质分子的粒子一定含有共价键 |
| D: 在氧化钠中，除氧离子和钠离子的静电吸引作用外，还存在电子与电子、原子核与原子核之间的排斥作用 |
一次做对，真牛！
+5奖励规则>
- 提示1：5Y+q6KaB5YyW5ZCI54mp5Lit5ZCr5pyJ56a75a2Q6ZSu77yM5bCx5Y+v5Lul56Gu5a6a5Li656a75a2Q5YyW5ZCI54mp44CC
- 提示2：5oOw5oCn5rCU5L2T5YiG5a2Q5Li65Y2V5Y6f5a2Q5YiG5a2Q77yM5LiN5ZCr5YyW5a2m6ZSu77yM
- 答案：QSxE
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.下列说法正确的是① 化学键存在于原子间，也存在于分子之间② 两种非金属原子不能形成离子键③ 共价化合物只含共价键，离子化合物中可能含有共价键④ 不同元素组成的多原子分子里的化学键一定只有极性键⑤ 离子键和极性键只存在于化合物中⑥ 离子化合物中一定含有非金属元素⑦ 非金属元素间不可能组成离子化合物
| A: ①③⑤⑥ |
| B: ②③⑤⑥ |
| C:②③④⑤ |
| D: ①②③⑤ |
一次做对，真牛！
+5奖励规则>
- 提示1：5YyW5a2m6ZSu5piv5oyH5L2/56a75a2Q55u457uT5ZCI5oiW5Y6f5a2Q55u457uT5ZCI55qE5L2c55So5Yqb44CC
- 提示2：5rOo5oSP6ZO155uQ55qE54m55q6K5oCn
- 答案：Qg==
5qC55o2u5YyW5a2m6ZSu55qE5a6a5LmJ5Y+v55+l77yM5YiG5a2Q5LiO5YiG5a2Q5LmL6Ze055qE5L2c55So5LiN6IO956ew5Li65YyW5a2m6ZSu44CC4pGg6ZSZ77ybPGJyPuWmgui/h+awp+WMlumSoOaIlui/h+awp+WMluawou+8jOWkmuWOn+WtkOWIhuWtkOS4lOWQq+acieS4jeWQjOeahOWFg+e0oO+8jOS9huWIhuWtkOS4reWtmOWcqOmdnuaegeaAp+mUruOAguKRo+mUme+8mzxicj7pgJrov4fnibnmrornmoTpk7Xnm5Dlj6/ku6Xnn6XpgZPikaXplJnjgII8YnI+57u85LiK77yM6YCJ5oupQumhueOAgg==
本课配套习题挑战模式5/5
单选题
难度系数：
5.A、B两元素属于同一周期，能以共价键结合成化学式为AB2型的化合物。A和B两元素可能分别属于元素周期表中的
| A: ⅡA族和ⅥA族 |
| B: ⅠA族和ⅥA族 |
| C: ⅣA族和ⅥA族 |
| D: ⅣA族和ⅦA族 |
一次做对，真牛！
+5奖励规则>
- 提示1：5pys6aKY5Y+v5Lul5YiG5Yir5YiG5p6Q5ZCE6YCJ6aG577yM5Y+q6KaB5Y+v5Lul5YiX5Li+5Ye65LiA5Liq5L6/5Y+v5Lul5o6S6Zmk44CC
- 答案：Qw==
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
