百度试题 结果1 题目Copper is a kind of _. A. stone B. wood C. marble D. metal 相关知识点: 试题来源: 解析 D 反馈 收藏
百度试题 结果1 题目Copper is a kind of(a)stone(b)marble(c)wood(d)metal 相关知识点: 试题来源: 解析 d 反馈 收藏
【题目】2. Copper is a transition metal.(a)Describe the bonding in copper andexplain why copper is usuallymanufactured as electric wire.(b) Lit two characteritics of transiion metals.(c)Identify the nature of bonding between theligand and the transition metal ion in thecomplex [Cu(NH3)4]...
百度试题 结果1 题目单项选择 Copper is a kind of ___. stone, marble, wood, metal相关知识点: 试题来源: 解析 metal 反馈 收藏
Which of the following elements is a metal? A. carbon B. sulfur C. copper D. phosphorus 相关知识点: 试题来源: 解析 C。金属元素是铜。选项 A 是碳,是非金属元素;选项 B 是硫,是非金属元素;选项 D 是磷,是非金属元素。所以答案是 C 。
Copper is an essential metal in the motors, wiring, radiators,connectors, brakes, and bearings used in cars and trucks.The excellent mixing natures of copper have made it priceless when combined with other metals, suchas zinc (toform brass), tin (toform bronze), or nickel._G_ And, ...
结果1 题目 ⑨Copper is an important conducive metal, both because of its highconductvity and be-cause of its abundance and low cost.铜是一种重要导体,因为它的导电率高,而且资源丰富,价格又低。 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
Copper is an essential metal in the motors, wiring, radiators,connectors, brakes, an d bearings use d in cars an d trucks.The excellent mixing natures of copper have made it priceless when combine d with other metals, such as zinc (to form brass), tin (to form bronze), or nickel. _...
The most significant source of copper is in minerals like bornite and chalcopyrite. Copper is one of the essential metals for the human body. Cu reacts with atmospheric oxygen to form copper oxide, which is black in color. Cu was the first metal with which alloy was made. Copper can be...
In its ionic state, copper (Cu) can have either a +1 or a +2 charge. Copper is a transition metal, which means it can exhibit variable valency and form ions with partially filled d orbitals. A neutral copper atom has an atomic number of 29 and a total of 29 electrons. Its electron...