本课配套习题挑战模式1/5
单选题
难度系数:
1.将金属锰(Mn)投入稀盐酸中,有气泡产生.将镁条插入硫酸锰溶液中,如果有锰析出,则Mn、Mg、Cu的金属活泼性由弱到强的顺序是
A: Mn、Mg、Cu |
B: Cu、Mn、Mg |
C: Cu、Mg、Mn |
D: Mn、Cu、Mg |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo6YeR5bGe5rS75Yqo5oCn6aG65bqP5Lit77yM5L2N5LqO5rCi5YmN6Z2i55qE6YeR5bGe6IO9572u5o2i5Ye66YW45Lit55qE5rCi77yb
- 提示2:5L2N5LqO5YmN6Z2i55qE6YeR5bGe6IO95oqK5o6S5Zyo5a6D5ZCO6Z2i55qE6YeR5bGe5LuO5YW255uQ5rq25ray5Lit572u5o2i5Ye65p2l
- 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.如图所示,等臂杠杆AB两端各挂体积相同、质量相等的空心铜球和铁球,在水平位置平衡,再将铜球、铁球分别同时浸没在盛有CuSO4溶液的烧杯中,则将发现(球体积变化忽略不计)。
A: 杠杆A端下倾 |
B: 杠杆B端下倾 |
C: 杠杆仍在水平位置平衡 |
D: 杠杆先A端下倾,后B端下倾 |
一次做对,真牛!
+5奖励规则>
- 提示1:6ICD6JmR5Lik5Liq5a655Zmo5Lit5piv5ZCm5Y+R55Sf5Y+N5bqU77yM5Y+R55Sf5Y+N5bqU5a+56LSo6YeP5Lqn55Sf5oCO5qC355qE5b2x5ZON44CC
- 提示2:6ZOB5Y+v5Lul5bCG6ZOc572u5o2i5Ye65p2l77yM6ZOc55qE55u45a+55YiG5a2Q6LSo6YeP5Li6NjTvvIzpk4HnmoTnm7jlr7nliIblrZDotKjph4/kuLo1Nu+8jOWboOatpELnkIPlj5jph43jgII=
- 答案:Qg==
6ZOB55CD5LiO56Gr6YW46ZOc5rq25ray5Y+R55Sf572u5o2i5Y+N5bqU77yM5Y+N5bqU5ZCO5Zu65L2T55qE6LSo6YeP5aSn5LqO5Y+N5bqU5YmN55qE5Zu65L2T6LSo6YeP77yM6ZOB55CD5Y+Y6YeN77yM5Zug5q2kQueQg+S4i+WAvuOAgg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.有甲、乙、丙、丁四种金属,只有甲是在自然界中是以单质形式存在.乙的化合物的溶液不能用丙制成的容器盛装,但可以用丁制成的容器盛装,则四种金属的活动性顺序为
A: 丁>丙>乙>甲 |
B: 乙>甲>丙>丁 |
C: 丙>丁>甲>乙 |
D: 丙>乙>丁>甲 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5Y+q5pyJ55Sy5piv5Zyo6Ieq54S255WM5Lit5piv5Lul5Y2V6LSo5b2i5byP5a2Y5Zyo77yO5LmZ55qE5YyW5ZCI54mp55qE5rq25ray5LiN6IO955So5LiZ5Yi25oiQ55qE5a655Zmo55ub6KOF77yM5L2G5Y+v5Lul55So5LiB5Yi25oiQ55qE5a655Zmo55ub6KOF5LiJ5Liq5bey55+l5p2h5Lu25YiG5p6Q6Kej562U77yO
- 答案:RA==
5LmZ55qE5YyW5ZCI54mp55qE5rq25ray5LiN6IO955So5LiZ5Yi25oiQ55qE5a655Zmo55ub6KOF77yM6K+05piO5LiZ5q+U5LmZ5rS75rO877yb5LmZ55qE5YyW5ZCI54mp55qE5rq25ray5Y+v5Lul55So5LiB5Yi25oiQ55qE5a655Zmo55ub6KOF77yM6K+05piO5LiB5q+U5LmZ5rS75rO877yb55Sy5piv5Zyo6Ieq54S255WM5Lit5piv5Lul5Y2V6LSo5b2i5byP5a2Y5Zyo77yM6K+05piO55Sy55qE5YyW5a2m5oCn6LSo5LiN5rS75rO877yM5pWF6L+Z5Zub56eN6YeR5bGe5LiZ5pyA5rS75rO877yM5YW25qyh5piv5LmZ77yM5YaN5qyh5piv5LiB77yM5pyA5LiN5rS75rO855qE5piv55Sy77yOPGJyPuaVhemAiUTvvI4=
本课配套习题挑战模式4/5
单选题
难度系数:
4.小薇自制了几支“吹不灭的蜡烛”,点燃后即使用力吹灭火焰,蜡烛也会很快复燃,这种蜡烛之所以具有熄而复燃的特点,是因为在烛芯中加入了某种金属粉末X,将X粉末放入少量盐酸中有大量气泡产生,待反应停止后,向反应后溶液中加入锌粒,无明显现象,则X、Zn、Cu三种金属活动性由强到弱的顺序是
A: Zn、X、Cu |
B: X、Zn、Cu |
C: Zn、Cu、X |
D: Cu、X、Zn |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo6YeR5bGe5rS75Yqo5oCn6aG65bqP5Lit77yM5Y+q5pyJ5YmN6Z2i55qE6YeR5bGe5Y+v5Lul5oqK5o6S5Zyo5a6D5ZCO6Z2i55qE6YeR5bGe5LuO55uQ5rq25ray5Lit572u5o2i5Ye65p2l77yM
- 答案:Qg==
55Sx6aKY5oSP5Y+v55+l77yM5bCGWOeyieacq+aUvuWFpeWwkemHj+ebkOmFuOS4reacieWkp+mHj+awlOazoeS6p+eUn++8jOWQkeWPjeW6lOWQjua6tua2suS4reWKoOWFpemUjOeyku+8jOaXoOaYjuaYvueOsOixoe+8jOivtOaYjuS6hljnmoTmtLvms7zmgKflpKfkuo7plIzvvI7nlLHph5HlsZ7mtLvliqjmgKfpobrluo/ooajlj6/nn6XvvIzplIznmoTmtLvms7zmgKflpKfkuo7pk5zvvI7miYDku6XvvIxY44CBWm7jgIFDdeS4ieenjemHkeWxnua0u+WKqOaAp+eUseW8uuWIsOW8seeahOmhuuW6j+aYr1jjgIFabuOAgUN177yO6KeC5a+f6YCJ5oup6aG55Y+v55+l77yMQuato+ehru+8jEHjgIFD44CBROmUmeivr++8jjxicj7mlYXpgIlC77yO
本课配套习题挑战模式5/5
单选题
难度系数:
5.欲判断三种金属X、Y、Z的活动性顺序,没有必要验证的结论是
A: Y能置换含X的化合物溶液中的X |
B: X能置换酸中的氢 |
C: Y能置换酸中的氢 |
D: Z不能置换酸中的氢 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo6YeR5bGe5rS75Yqo5oCn6aG65bqP5Lit77yM5rCi5YmN55qE6YeR5bGe6IO9572u5o2i6YW45Lit55qE5rCi
- 提示2:5L2N572u5Zyo5YmN55qE6YeR5bGe6IO95oqK5L2N5LqO5YW25ZCO55qE6YeR5bGe5LuO5YW255uQ5rq25ray5Lit572u5o2i5Ye65p2l77yO
- 答案:Qw==
WeiDvee9ruaNouWQq1jnmoTljJblkIjnianmurbmtrLkuK3nmoRY77yM6K+05piOWe+8nljvvIxY6IO9572u5o2i6YW45Lit55qE5rCi77yM6K+05piOWO+8nkjvvIzku47ogIzor7TmmI5Z77yeSO+8jFrkuI3og73nva7mjaLphbjkuK3nmoTmsKLvvIzor7TmmI48YnI+SO+8nlrvvIznu7zlkIjogIPomZHvvIzmsqHmnInlv4XopoHpqozor4HnmoTnu5PorrrmmK9D77yMPGJyPuaVhemAiUPvvI4=