What chemical element is P?Question:What chemical element is P?Elements:Chemical elements are unique classes of substances in which all the atoms of that substance are the same type. These atoms are characterized by having the same number of protons in their nuclei, allowing an element to retai...
What chemical reaction is described by this equilibrium expression? [ C a ] 2 [ O 2 ] [ C a O ] 2 1.. What is the definition of the "equilibrium constant"? Write the equilibrium constant expression for the following reaction: Pb^2+ (aq) + 2I^- (aq) <--> PbI2(s) 2. Consid...
What is Lead? If you were talking to an alchemist from hundreds of years ago, they'd tell you that they were using a heavy metal called lead (Pb) to try and make gold. Yep, some of the leading minds in history tried to use lead to make gold. Suffice it to say, they all failed...
百度试题 结果1 题目A4 What is the chemical formula of lead(II) sulphate?Apakah formula kimia bagi plumbum(II) sulfat? A. PbSO4 B. Pb(SO4)2 C. Pb2SO4 D. Pb(SO4)4 相关知识点: 试题来源: 解析 A 反馈 收藏
This polymer has been referred to as polybutylene, PB, PB-1 and polybutene, as well as its correct chemical name, Polybutene-1. If it is a branched monomer molecule then the resulting polymer is called Polyisobutylene (PIB). The polymer PBPSA members use is Polybutene-1. In the past ...
A secondary patent is a patent on aspects other than the original active drug ingredient, such as chemical variants, new formulations of the drug or methods of administration [19]. It is used to extend the effective patent life of a drug....
What is Solder Flux (Soldering Flux)?Solder flux is a kind of chemical used in Automatic PCB Assembly and Hand Soldering. It is basically used to clean surface of PCB before soldering process. It helps to clean and remove oxides and other impurities and thus helps in wetting....
The point is that the way in which a particular job is done in “applied” chemistry is not determined by chemical considerations only, but by a complex mixture of these and a whole host of other considerations—availability of materials, engineering, economics, safety, etc. “Applied” ...
What_is_green_chemistry 绿色化学 2.WhatIsGreenChemistry?Contents 2.1Definition2.2WhyIsGCGettingSoMuchAttention?2.3WhyShouldChemistsPursuetheGoalofGC?2.4BarrierstointroducingGC ECNU 2.1Definition GreenchemistryEnvironmentallybenignchemicalsynthesisAlternativesyntheticpathwaysforpollutionpreventionBenignbydesign Anastas...
The chemical reactivity of Lipoic acid is mainly conferred by its dithiolane ring. The oxidized (Lipoic acid) and reduced (reduced dihydrolipoic acid) forms create a potent redox couple that has a standard reduction potential of − 0.32 V. This makes reduced dihydrolipoic acid one of the most...