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.
下列反应不属于氧化还原反应的是
| A: 2H2+O2 = 2H2O |
| B: CO2+H2O=H2CO3 |
| C: 2CO+O2=CO2 |
| D: 2Cu+O2 |
2Cu
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+QeS4reWxnuS6juacieWNlei0qOWPguS4jueahOWMluWQiOWPjeW6lO+8jOS4gOWumuWxnuS6juawp+WMlui/mOWOn+WPjeW6lDwvcD4=
- 提示2：PHA+QuaYr+ayoeacieWMluWQiOS7t+WPmOWMljwvcD4=
- 提示3：PHA+Q+S5n+aYr+WxnuS6juacieWNlei0qOWPguS4jueahOWMluWQiOWPjeW6lO+8jOS4gOWumuWxnuS6juawp+WMlui/mOWOn+WPjeW6lDwvcD4=
- 答案：Qg==
PHA+QumhueWMluWQiOS7t+ayoeacieWPkeeUn+WPmOWMljwvcD4=
本课配套习题挑战模式2/5
单选题
难度系数：
2.
下列叙述正确的是
| A: 在氧化还原反应中，肯定有一种元素被氧化，另一种元素被还原 |
| B: 元素由化合态变成游离态时，它可能被氧化，也可能被还原 |
| C: 元素的原子得失电子后，一定形成8电子的稳定结构 |
| D: 有单质参加或生成的反应一定属于氧化还原反应 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5pyJ5Lqb5Y+N5bqU5Lit5LiN5q2i5LiA56eN5YWD57Sg6KKr5rCn5YyW5oiW6KKr6L+Y5Y6f77yM5Lmf5pyJ5LiA5Lqb5Y+N5bqU5Y+v6IO95Y+q5pyJMeenjeWFg+e0oO+8jOaXouiiq+awp+WMluWPiOiiq+i/mOWOn++8jEHpobnplJk8YnI+PC9wPg==
- 提示2：PHA+SOWOn+WtkOW+l+eUteWtkOWQjuW9ouaIkDLnlLXlrZDnqLPlrprnu5PmnoTvvIxD6aG56ZSZ6K+vPC9wPg==
- 提示3：PHA+5ZCM57Sg5byC5b2i5L2T5LmL6Ze055qE6L2s5YyW5Y+N5bqU5bGe5LqO6Z2e5rCn5YyW6L+Y5Y6f5Y+N5bqU77yMROmhuemUmTwvcD4=
- 答案：Qg==
PHA+5pyJ5Lqb5Y+N5bqU5Lit5LiN5q2i5LiA56eN5YWD57Sg6KKr5rCn5YyW5oiW6KKr6L+Y5Y6f77yM5Lmf5pyJ5LiA5Lqb5Y+N5bqU5Y+v6IO95Y+q5pyJMeenjeWFg+e0oO+8jOaXouiiq+awp+WMluWPiOiiq+i/mOWOn++8jEHpobnplJnvvJtI5Y6f5a2Q5b6X55S15a2Q5ZCO5b2i5oiQMueUteWtkOeos+Wumue7k+aehO+8jEPpobnplJnor6/vvJvlkIzntKDlvILlvaLkvZPkuYvpl7TnmoTovazljJblj43lupTlsZ7kuo7pnZ7msKfljJbov5jljp/lj43lupTvvIxE6aG56ZSZ44CCPGJyPjwvcD4=
本课配套习题挑战模式3/5
单选题
难度系数：
3.下列反应既属于氧化还原反应又属于分解反应的是
| A: Zn+H2SO4=ZnSO4+H2↑ |
B: 2KClO3 2KCl+3O2↑ |
C: S+O2 SO2 |
D: CaCO3 CaO+CO2↑ |
一次做对，真牛！
+5奖励规则>
- 提示1：IEEuDQpabitIPHN1Yj4yPC9zdWI+U088c3ViPjQ8L3N1Yj49Wm5TTzxzdWI+NDwvc3ViPitIPHN1Yj4yPC9zdWI+4oaR5bGe5LqO572u5o2i5Y+N5bqU77yM5Lmf5bGe5LqO5rCn5YyW6L+Y5Y6f5Y+N5bqU77yM5pWFQeS4jemAie+8mw==
- 提示2：IEIuDQoyS0NsTzxzdWI+Mzwvc3ViPjxpbWcgYm9yZGVyPTAgd2lkdGg9MjkgaGVpZ2h0PTI5IHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjMvOUIvckJBQ0UxT0F6OG1pbjZOdkFBQUIzUEpFdzYwMjk2LnBuZyI+MktDbCszTzxzdWI+Mjwvc3ViPuKGkeWxnuS6juWIhuino+WPjeW6lO+8jOS5n+WxnuS6juawp+WMlui/mOWOn+WPjeW6lO+8jOaVhULpgInvvJs=
- 提示3：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
- 答案：Qg==
QS4gWm4rSDxzdWI+Mjwvc3ViPlNPPHN1Yj40PC9zdWI+PVpuU088c3ViPjQ8L3N1Yj4rSDxzdWI+Mjwvc3ViPuKGkeWxnuS6jue9ruaNouWPjeW6lO+8jOS5n+WxnuS6juawp+WMlui/mOWOn+WPjeW6lO+8jOaVhUHkuI3pgInvvJs8YnI+Qi4gMktDbE88c3ViPjM8L3N1Yj48aW1nIGJvcmRlcj0wIHdpZHRoPTI5IGhlaWdodD0yOSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzYzLzlCL3JCQUNFMU9BejhtaW42TnZBQUFCM1BKRXc2MDI5Ni5wbmciPjJLQ2wrM088c3ViPjI8L3N1Yj7ihpHlsZ7kuo7liIbop6Plj43lupTvvIzkuZ/lsZ7kuo7msKfljJbov5jljp/lj43lupTvvIzmlYVC6YCJ77ybPGJyPkMuIFMrTzxzdWI+Mjwvc3ViPjxpbWcgYm9yZGVyPTAgd2lkdGg9MjUgaGVpZ2h0PTI3IHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjcvQUIvckJBQ0ZGT0F6OG1ocnh5ekFBQUIyR0lSQXcwODkzLnBuZyI+U088c3ViPjI8L3N1Yj7lsZ7kuo7ljJblkIjlj43lupTvvIzkuZ/lsZ7kuo7msKfljJbov5jljp/lj43lupTvvIzmlYVD5LiN6YCJ77ybPGJyPkQuIENhQ088c3ViPjM8L3N1Yj48aW1nIGJvcmRlcj0wIHdpZHRoPTI1IGhlaWdodD0yNyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzI3L0FCL3JCQUNGRk9BejhuQW9adE1BQUFCeG00WGhSYzk4My5wbmciPkNhTytDTzxzdWI+Mjwvc3ViPuKGkeWxnuS6juWIhuino+WPjeW6lO+8jOS9huayoeacieWFg+e0oOeahOWMluWQiOS7t+WPmOWMlu+8jOWImeS4jeaYr+awp+WMlui/mOWOn+WPjeW6lO+8jOaVhUTkuI3pgInvvJs=
本课配套习题挑战模式4/5
单选题
难度系数：
4.
下列反应中，既不属于化合反应也不属于分解反应，而属于氧化反应的是
| A: 碳酸钙 |
| B: 钠+氧气 |
| C: 酒精+氧气 |
| D: 碳酸=水+二氧化碳 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+QeOAgeivpeWPjeW6lOeUseS4gOenjeeJqei0qOeUn+aIkOS6huS4pOenjeeJqei0qO+8jOWxnuS6juWIhuino+WPjeW6lO+8jOaVhUHkuI3nrKblkIjpopjmhI/vvJs8L3A+
- 提示2：PHA+QuOAgeivpeWPjeW6lOeUseS4pOenjeeJqei0qOeUn+aIkOS6huS4gOenjeeJqei0qO+8jOWxnuS6juWMluWQiOWPjeW6lO+8jOaVhULkuI3nrKblkIjpopjmhI/vvJs8L3A+
- 提示3：PHA+Q+OAgeivpeWPjeW6lOaXouS4jeWxnuS6juWMluWQiOWPjeW6lOS5n+S4jeWxnuS6juWIhuino+WPjeW6lO+8jOaYr+mFkueyvuS4juawp+awlOWPkeeUn+S6huWPjeW6lO+8jOWxnuS6juawp+WMluWPjeW6lO+8jOaVhUPnrKblkIjpopjmhI/vvJtE44CB6K+l5Y+N5bqU55Sx5LiA56eN54mp6LSo55Sf5oiQ5LqG5Lik56eN54mp6LSo77yM5bGe5LqO5YiG6Kej5Y+N5bqU77yM5pWFROS4jeespuWQiOmimOaEj+OAgjwvcD4=
- 答案：Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.
下列化学反应属于区域3的是
| A: 4Fe(OH)2＋O2＋2H2O===4Fe(OH)3 |
| B: 2NaHCO3 |
| C: 4NH3＋5O2 |
| D: Zn＋H2SO4=ZnSO4＋H2↑ |
4NO＋6H2O
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+QemhueS4reeahOWPjeW6lOaYr+WMluWQiOWPjeW6lO+8jOS4lOWFg+e0oOacieWMluWQiOS7t+eahOWPmOWMlu+8jOWxnuS6juWMuuWfnzE8L3A+
- 提示2：PHA+QumhueS4reeahOWPjeW6lOaYr+WIhuino+WPjeW6lO+8jOS9huWFtuWFg+e0oOWMluWQiOS7t+ayoeacieWPmOWMlu+8jOWxnuS6jumZpOWMuuWfnzLnmoTliIbop6Plj43lupQ8L3A+
- 提示3：PHA+Q+mhueS4reeahOWPjeW6lOaYr+awp+WMlui/mOWOn+WPjeW6lO+8jOWxnuS6juWMuuWfnzPvvIxE6aG55Lit55qE5Y+N5bqU5piv572u5o2i5Y+N5bqU77yM5bGe5LqO5Yy65Z+fNOOAgjwvcD4=
- 答案：Qw==
PHA+QemhueS4reeahOWPjeW6lOaYr+WMluWQiOWPjeW6lO+8jOS4lOWFg+e0oOacieWMluWQiOS7t+eahOWPmOWMlu+8jOWxnuS6juWMuuWfnzHvvJtC6aG55Lit55qE5Y+N5bqU5piv5YiG6Kej5Y+N5bqU77yM5L2G5YW25YWD57Sg5YyW5ZCI5Lu35rKh5pyJ5Y+Y5YyW77yM5bGe5LqO6Zmk5Yy65Z+fMueahOWIhuino+WPjeW6lO+8m0PpobnkuK3nmoTlj43lupTmmK/msKfljJbov5jljp/lj43lupTvvIzlsZ7kuo7ljLrln58z77ybROmhueS4reeahOWPjeW6lOaYr+e9ruaNouWPjeW6lO+8jOWxnuS6juWMuuWfnzTjgII8L3A+
