Sodium chloride is a good conductor of electricity when ___. A. 样当称采那状们最己样当称采那状们最己solid样当称采那状们最己样当称采那状们最己 B. 同入局油火家且决放交精千县号断万方而色同入局油火家且决放交精千县号断万方而色melted同入局油火家且决放交精千县号断万方而色同入局油火家...
Which of the following substances is a good conductor of electricity in its aqueous solution? A. Sugar B. Ethanol C. Sodium chloride D. Oil 相关知识点: 试题来源: 解析 C。解析:在化学里,氯化钠(sodium chloride)是电解质,其水溶液能导电。而糖(sugar)和乙醇(ethanol)是非电解质,它们的水溶液不...
百度试题 结果1 题目The element that is a good conductor of electricity is ___. A. oxygen B. sodium C. phosphorus D. sulfur 相关知识点: 试题来源: 解析 B。钠是一种金属元素,金属通常是良好的导电体。氧、磷、硫都不是良好的导电体。
百度试题 结果1 题目The element that is a good conductor of electricity is ___. A. oxygen B. sulfur C. copper D. nitrogen 相关知识点: 试题来源: 解析 C。铜是一种良好的电导体。氧气、硫和氮气通常不是良好的电导体。反馈 收藏
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Which material is a good conductor of electricity? A. 分所分所Plastic分所分所 B. 例清不几清看书思写白出价引组交按例清不几清看书思写白出价引组交按Wood例清不几清看书思写白出价引组交按例清不几清看书思写白出价引组交按 C. 公会做手同定取公会做手同定取Metal公会做手同定取公会做手同定取 ...
Which substance is a good conductor of electricity? A. Glass B. Wood C. Metal D. Plastic 相关知识点: 试题来源: 解析 C。本题考查物质的导电性。Glass(玻璃)、Wood(木头)、Plastic(塑料)都是绝缘体,不导电;Metal(金属)是良好的导体。反馈 收藏 ...
百度试题 结果1 题目Electricity can flow through wires. What material is a good conductor of electricity? A. Wood. B. Glass. C. Copper. 相关知识点: 试题来源: 解析 C。铜是良好的导电材料。木头和玻璃不导电。反馈 收藏
Copper is a good conductor of electricity. Which of the following is not a good conductor? A. Silver B. Rubber C. Gold D. Aluminum 相关知识点: 试题来源: 解析 B。解析:在自然科学中,橡胶(rubber)是绝缘体,不是电的良导体。而银(silver)、金(gold)和铝(aluminum)都是良好的电导体。从英语...
The element that is a good conductor of electricity and is shiny is ___. A. Fe B. O C. H D. N 相关知识点: 试题来源: 解析 A。铁(Fe)是金属元素,具有良好的导电性且有金属光泽。选项 B 氧(O)、选项 C 氢(H)、选项 D 氮(N)都不是金属元素,不具有良好的导电性和金属光泽。