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.下列物质不需经过化学变化就能从海水中获得的是
| A: 烧碱 |
| B: 食盐 |
| C: 单质镁 |
| D: 单质溴 |
一次做对，真牛！
+5奖励规则>
- 提示1：5qC55o2u5LuO5rW35rC05Yi25aSH54mp6LSo55qE5Y6f55CG5Y+v55+l77yM5rCv5YyW6ZKg5ZCr6YeP5q+U6L6D6auY77yM5Y+v5Yip55So6JK45Y+R5Y6f55CG5b6X5Yiw77yM6YeR5bGe5Y2V6LSo5LiO6Z2e6YeR5bGe5Y2V6LSo6ZyA6KaB5Yip55So5YyW5a2m5Y+N5bqU5p2l5Yi25Y+W77yM5o2u5q2k5Y2z5Y+v6Kej562U77yO
- 答案：Qg==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.海水是一个巨大的化学资源库，下列有关海水综合利用的说法中，正确的是
| A: 海水中含有钾元素，只需经过物理变化就可以得到单质钾 |
| B: 海水蒸发制盐的过程中只发生了化学变化 |
| C: 从海水中除得到氯化钠外，还可用其作原料制得纯碱、烧碱、金属钠及氯气、盐酸等含氯化产品 |
| D: 利用潮汐发电是将化学能转化为电能 |
一次做对，真牛！
+5奖励规则>
- 提示1：5rCv5YyW6ZKg5Y+v55So5YW25L2c5Y6f5paZ5Yi25b6X57qv56Kx44CB54On56Kx44CB6YeR5bGe6ZKg5Y+K5rCv5rCU44CB55uQ6YW4562J5ZCr5rCv5YyW5Lqn5ZOB77yb
- 提示2：5r2u5rGQ5Y+R55S155qE5a6e6LSo5piv5bCG5r2u5rGQ55qE5Yqo6IO95LiO5Yq/6IO96L2s5YyW5Li655S16IO944CC
- 答案：Qw==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.下列有关海水综合利用的说法正确的是
| A: 从海水中提取钠单质只有物理变化发生 |
| B: 从海水制食盐主要是通过化学变化完成 |
| C: 电解氯化钠溶液可以制得钠单质和氯气 |
| D: 电解熔融的氯化镁可制备镁单质和氯气 |
一次做对，真牛！
+5奖励规则>
- 提示1：5rC05Lit5a+M5ZCrTmHjgIFDbOOAgU1n44CBQnLjgIFJ562J5YWD57Sg77yM5LuO5rW35rC05Lit6I635Y+W6ZKg44CB6ZWB44CB5rCv5rCU562J5Y2V6LSo77yM6KaB57uP6L+H55S16Kej562J5pON5L2c77yM5Li65YyW5a2m5Y+Y5YyW77yM5rW35rC057uP6L+H6JK46aaP5Y+v5b6X5Yiw5reh5rC077yM57uP6L+H6JK45Y+R57uT5pm25Y+v5b6X5Yiw5rCv5YyW6ZKg
- 答案：RA==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.下列关于海洋资源开发和利用的叙述，不正确的是
| A: 海水经过风吹日晒，逐渐蒸发，可制得食盐等物质 |
| B: 海水蕴藏着丰富的化学资源 |
| C: 地球表面大部分被海水覆盖，故人类不存在缺水问题 |
| D: 开发海洋资源应遵循可持续发展的原则 |
一次做对，真牛！
+5奖励规则>
- 提示1：5rW35rC05Lit6JW06JeP552A5Liw5a+M55qE6LWE5rqQ77yM5qC55o2u5rW35rC05Y+v5Lul5o+Q5Y+W6aOf55uQ44CB5rq05Y2V6LSo44CB6YeR5bGe6ZWB562J77yM5o+Q5Y+W6aOf55uQ55u05o6l5bCG5rq25YmC5rC06JK45Y+R5Y2z5Y+v44CC
- 答案：QQ==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.下列有关海水综合利用的说法正确的是
| A: 通过物理变化可以从海水中得到钾单质 |
| B: 利用潮汐发电是将化学能转化为电能 |
| C: 从海水中可得到NaCl，电解熔融NaCl可制备Na |
| D: 海水蒸发制海盐的过程中只发生了化学变化 |
一次做对，真牛！
+5奖励规则>
- 提示1：6ZK+5YWD57Sg5Zyo5rW35rC05Lit5Lul56a75a2Q55qE5b2i5byP5a2Y5Zyo44CC
- 答案：Qw==
5rW35rC05Lit55qE6ZK+5YWD57Sg5Y+q6IO95Lul6ZK+56a75a2Q55qE54q25oCB5a2Y5Zyo44CC5Zug5q2k6KaB5oOz5Yi25Y+W6ZK+5Y2V6LSo77yM5LiA5a6a6ZyA6KaB5YyW5a2m5Y+N5bqU44CCQemhuemUmeivr++8mzxicj7mva7msZDlj5HnlLXmmK/lsIbmva7msZDmiYDlhbfmnInnmoTmnLrmorDog73ovazljJbkuLrnlLXog73jgIJC6aG56ZSZ6K+v77ybPGJyPkTpobnvvIzokrjlj5HmurbliYLnmoTov4fnqIvkuK3lubbmsqHmnInmlrDnianotKjnlJ/miJDvvIzlj6rmnInniannkIblj5jljJbmsqHmnInljJblrablj5jljJbjgII=
