Which of the following can conduct electricity? A. Rubber B. Wood C. Copper D. Plastic 相关知识点: 试题来源: 解析 C。解析:铜是金属,金属具有自由电子,能够导电。而橡胶、木头和塑料都是绝缘体,它们内部几乎没有自由移动的电荷,不能传导电流。
A. insulator B. conductor C. semiconductor D. superconductor 相关知识点: 试题来源: 解析 B。在熔融状态下能导电的物质称为导体。选项 A“insulator”是绝缘体;选项 C“semiconductor”是半导体;选项 D“superconductor”是超导体,通常有特定的条件,不符合一般的描述。反馈 收藏 ...
结果一 题目 3. Which of the following can conduct electricity(导电)?BA. Glass.B. Plastic. C. Oil.D. Water. 答案 答案见上相关推荐 13. Which of the following can conduct electricity(导电)?BA. Glass.B. Plastic. C. Oil.D. Water....
Some substances can conduct electricity in certain states. Which of the following can conduct electricity when molten? A. Sugar B. Glass C. Salt D. Wood 相关知识点: 试题来源: 解析 C。盐在熔融状态下可以导电。糖、玻璃和木头通常不能导电。本题涉及物质的导电性,阅读中要抓住关键信息“conduct ...
A substance that can conduct electricity in the molten state but not in the solid state is called a ___. A. metallic conductor B. semiconductor C. non-metal D. electrolyte 相关知识点: 试题来源: 解析 D。electrolyte 是电解质,在熔融状态下能导电而固态时不能导电;metallic conductor 是金属导体...
Graphite can conduct electricity.Why can graphite conduct electricity? A Delocalised electrons are between layers. B The ions can move. C Layers have weak intermolecular forces. D Strong covalent bonds are between the carbon atoms.Your answer D 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
the finer things but the finest diamond mu the fire the fire burning insi the fire that about t the first apple the first brave man t the first canadaian-b the first casualty the first commitment the first counter the first day the first day nahasso the first day of the the first ...
electricity at room temperature.参考: MY BRAIN carbon 有一个formate 系graphite 佢用左3粒slectron 去form covalent bond with other carbon 由于系3个bond 佢成为左一个plane 最后个粒electron 就系plane 同plane之间自由游离 由于lee 粒electron 系free electron 所以it conduct electricity ...
Sometimes electrical accidents can start fires. Electrical fires are different___other fires. Water conduct(传导)electricity. So___water on an electrical fire can only make the fire larger. Here is___you should remember: ① Never use water on...
Why is copper (II) sulfate solution a good conductor of electricity? Why don't electrons in atoms repel? Why does a solution of sodium chloride in water conduct an electric current? Why do ionic compounds conduct electricity in an aqueous solution or when molten, but do not conduct electricit...