1、How is base strength related to the availability of the electron-pair?2、Define (i) a nuclephile or electron-donor and (ii) an electrophile or electron-acceptor.3、What structural units make a molecule (or ion)(i)a nucleophile or (ii)an electro

来源：学生作业帮助网编辑：作业帮时间：2024/05/02 16:36:34

1、How is base strength related to the availability of the electron-pair?2、Define (i) a nuclephile or electron-donor and (ii) an electrophile or electron-acceptor.3、What structural units make a molecule (or ion)(i)a nucleophile or (ii)an electro
1.Base strength depends on the ability of the basic site (which always has an unshared electron pair) to accept a proton.This ability depends on the charge in an anion or electron density in a molecular base.For species with an identical charge,dispersal or delocalization of the electrons from the basic site to other parts of the molecule results in decreased electron density and decreased base strength.
2.molecules having atoms with high electron density are called nucleophiles or electron donors.
molecules having atoms with low electron density are called electrophiles or electron-acceptors.
3.The atom in question,called a nucleophilic site,may be the negative (delta -) end of a polar covalent bond,have an unshared electron pair,or be part of a pi bond.It may also have a combination of these features.
The atom in question,called an electrophilic site,may be capable of taking on more valence electrons or be the positive (delta +) end of a polar bond.
4.Coordinate covalent bonding,Nu:+ E -> Nu:E

你把它翻译成中文在发布问题好咩？
我们看不懂！！！！！！！

This Is How We Do It Solid base这首歌的歌词谁有啊~ 求this is how we do it solid base歌词大意 this is how we do it solid base求这个歌 is based on 还是is base on 4518—the Garlic Farm is a perfect base to enjoy historic Cotehele,the San Francisco Bay area and the Monterey Bay area. 4097 什么意思?想问：1—a perfect base：怎么翻译这个base. working copy text base is corrupt是什么意思 what is the base word of disbelief? 英语翻译explain how a single base change in a gene can lead to a single amino acid change in that gene is polypeptide product . The height of a cuboid with a square base is 6cm whereas the side lengths of the square base are 5cm.If its height remains unchanged but the side lengths of the square base increase by acm,how much has its volume increased? 英语翻译1 How many of the number 2¹,2²,2³,……,2↑100,written in base-ten notation,have an ones digit of （↑100是100次方）2 What is the probability that,when two different integers are chosen at random from the first 1000 1、How is base strength related to the availability of the electron-pair?2、Define (i) a nuclephile or electron-donor and (ii) an electrophile or electron-acceptor.3、What structural units make a molecule (or ion)(i)a nucleophile or (ii)an electro The pKa of acid is 5.The pH of a solution containing acid X and its conjugate base is 6.What is the ratio of the concentration of conjugate base to the concentration of acid?(conjugate base:acid)(A)1:1(B)2:1(C)5:1(D)10:1(E)20:1 A display case is in the shape of a rectangular box with a square base.Suppose the volume is 21 cubic ft and it costs $1 per square ft.to build the glass top and $0.50 per sq.ft.to build the sides and base.If x is the length of one side of the base,w 英语翻译When vinyl or rubber wall base is used in a carpet adhesive installation,cove base or base-with-toe is highly recommended. The movie is ____(base) on a real story.RT Where there is a better embedded training base? The base UI Language directors is invalid!怎么翻译? 谁能帮忙把这些英语翻译成中文,谢了A rectangular box with a base 2 inches by 6 inches is 10 inches tall and holds 12 ounces of breakfast cereal. The manufacturer wants to use a new box with a base 3 inches by 5 inches. How many inches t