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已知电极材料:铁、铜、银、石墨、锌、铝; 电解质溶液: CuCl 2 溶液、Fe 2 (SO 4 ) 3 溶液、盐酸。接要求回答下列问题: 1电工操作上规定:不能把铜导线和铝导线连接在一起使用。请说明原因。 2若电极材料选铜和石墨,电解质溶液选硫酸铁溶液,外加导线,能否构成原电池?,若能,请分别写出正极和负极的反应式, 3若电极反应为:Cu+2H+= Cu 2+ +H 2 ↑,请在右边框图内画出实 现该反应的装置图(运用题目所给材料和药品)。
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【简答题】distress tedious exposure allergic exceeds 2. Those indifferent to others’ ___________ are known as cold-blooded animals.
【简答题】Time passes quickly when you are ___________ in reading a good book. adjust absorb capture distress tedious
【单选题】分类 IP地址129.66.51.89中的网络号是( )。
A.
129.66 .0.0
B.
129 .0.0.0
C.
129.66.51 .0
D.
0.0.0. 89
【简答题】His achievement rests with his ability to _________ himself to new surroundings. adjust absorb capture distress tedious
【简答题】Some artists are able to catch a likeness in a sketch while others are gifted to _________ a fleeting expression. adjust absorb capture distress tedious
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