百度试题 结果1 题目12 The relative atomic mass of chlorine is 35.5.B What is the mass of 2 moles of chlorine gas? A 17.75g B 35.5g C 71g D 142g 相关知识点: 试题来源: 解析 B 反馈 收藏
What is the molar mass of xenon? What is the molar mass of Al (ClO2)3? What is the molar mass of H3PO4? What is the gram molecular mass (gmm) of chlorine? What is the molar mass of aluminum sulfate? What is the molar mass of sulfur?
if a proton has a relative mass of 1 unit and a relative charge of +1 unit .what is the接上relative mass and charge of :1.a neutron2.an electron? 答案 质子,中子,电子...有什么关系?化学知识忘没了.搞清它们关系了应该就能选出来了.相关推荐 1if a proton has a relative mass of 1 unit...
What is the molar mass of chlorine gas? What is the molar mass of ammonium sulfate? What is the molar mass of ammonium dichromate? What is the mass percent of hydrogen in ammonium phosphate? What is the molar mass of nitric acid?
The primary CO‐ and Cl‐loss fragment ions undergo sequential reactions leading to fragment ions at m/z 98 and 77. The mass‐analysed ion kinetic energy (MIKE) spectrum of PCF+ showed that the loss of CO2 occurs with a large reverse energy barrier, which is consistent with the ...
Class 9 CHEMISTRY What is the molar mass of a gas or vapou... What is the molar mass of a gas or vapours under N.T.P. conditions? Video Solution | ShareSave Answer Step by step video & image solution for What is the molar mass of a gas or vapours under N.T.P. conditions? by...
百度试题 结果1 题目10 A compound has the formul a XF_{2} and has a relative mass of 70. C What is element X? A. gallium B. germanium C sulfur D ytterbium 相关知识点: 试题来源: 解析 C 反馈 收藏
The compound carbon monoxide(CO)is composed of carbon and oxygen in the ratio of one atom of carbon to one atom of oxygen.Hydrogen chloride(HCl)contains a ratio of one atom of hydrogen to one atom of chlorine.Compounds may contain more than one atom of the same element. Methane(“natural...
Matter—the visible kind, that is—interacts with the universe in many ways. It absorbs and, in many cases, emits electromagnetic radiation in the form of gamma rays, visible light, infrared, and more. It can generate magnetic fields of various sorts and strengths. Matter has mass, creating...
What is the density of chlorine gas at STP? A 100 mL beaker holds 170 g of liquid. (a) What is the liquid's density in SI units? A 300 mL beaker holds 190 g of liquid. What is the liquid's density in SI units...