Chemical elements can be named after planets. Which element is named after Uranus? A. Uranium B. Platinum C. Potassium D. Phosphorus 相关知识点: 试题来源: 解析 A。铀(Uranium)是以天王星(Uranus)命名的。铂(Platinum)、钾(Potassium)、磷(Phosphorus)都不是以行星命名。
Chemical elements can be named after minerals. Which element is named after a mineral containing iron? A. Manganese B. Magnesium C. Mercury D. Molybdenum 相关知识点: 试题来源: 解析 A。锰(Manganese)是以一种含有铁的矿物命名的。镁(Magnesium)、汞(Mercury)、钼(Molybdenum)都不是以含有铁的矿...
When batteries are used to power electronic devices, which chemical element is usually involved? A. Nitrogen B. Lithium C. Phosphorus D. Fluorine 相关知识点: 试题来源: 解析 B。解析:锂电池是目前常用的电池类型,锂元素在电池中起到储存和释放电能的作用。氮主要是在空气中,不是电池中常用元素。磷和...
Chemical elements may be named after famous scientists. Which element is named after Marie Curie? A. Curium B. Cadmium C. Calcium D. Carbon 相关知识点: 试题来源: 解析 A。锔(Curium)是以玛丽·居里(Marie Curie)和皮埃尔·居里(Pierre Curie)命名的。镉(Cadmium)、钙(Calcium)、碳(Carbon)都不是...
百度试题 结果1 题目Which chemical element is used in fertilizer? A. Potassium B. Sulfur C. Phosphorus D. Boron 相关知识点: 试题来源: 解析 C。磷在肥料中被广泛使用。钾也用于肥料但本题重点考查磷。硫和硼在其他方面有应用。反馈 收藏
百度试题 题目The content of which chemical element is usually constant in a nucleic acid: _ A.CB.OC.ND.HE.P相关知识点: 试题来源: 解析 E 反馈 收藏
Some chemical elements are named after countries. Which element is named after France? A. 中利认议任车亲下没重能全节属中利认议任车亲下没重能全节属Gallium中利认议任车亲下没重能全节属中利认议任车亲下没重能全节属 B. 装斯阶科近书正相斗战委装斯阶科近书正相斗战委Germanium装斯阶科近...
【题文】 Carbon is a chemical element which is present in organic compounds that make us organisms, plants as well as fossil. It is a vital component of the greenhouse gas CO2, the highest percentage of the global warming gas in the atmosphere.These Green House Gases (GIIGs) along with ...
【题目】 Carbon is a chemical element which is present in organic compounds that make us organisms , plants as well as fossil. It is a vital component of the greenhouse gas CO2 , the highest percentage of the global warming gas in the atmosphere.T hese Green House Gases (GHGs ) along ...
百度试题 结果1 题目a chemical element which is present in teeth, bones and chalk 相关知识点: 试题来源: 解析 calcium 解析见答案 反馈 收藏