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原电池Ag(s)|AgCl(s)|HCI(a)|Cl,(g.p)|PL的电池反应可写成以下
两种方式:
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第1题
A.Ag+(aq)+Br-(aq)→AgBr(s)
B.2Ag(s)+Br2(g)→2AgBr(s)
C.Ag(s)+1/2Br2(1)→AgBr(s)
D.Ag(s)+1/2Br2(g)→AgBr(s)
第3题
The main idea of the passage is given in the sentence beginning with "______"
A．Not long ago a California policeman stopped…
B．Thousands of babies are given strange names…
C．There's a Katz Neow in Washington D.C.…
D．But perhaps the strangest name of all is…
第4题
已知25°C时AgBr的活度积Kap=4.88x10-13,
,
.试计算25℃时
(1)银-溴化银电极的标准电极电势Eθ[Br-|AgBr(s)|Ag];
(2)AgBr(s)的标准摩尔生成吉布斯函数.
第5题
E-mail or electronic mail, is considered as the modem communication in the new age. It iscarried out in computers all over the world by millions of users. In this invisible world as many people call it,the users can send and receive letters to and from every comer of the earth. They share thoughts with pen pals (笔友)in New Zealand，ask strangers in Bombay (孟买)questions，debate with businessman in Manhattan. All of these are just happening in computers as fast as the travelling of the light,no writing and speaking,no paper and stamps are necessary.
E-mail is a pipeline to thousands of experts on everything;it is a means of meeting people with similar interests or problems. But it is not a live talk—a real conversation like those in telephones.E-mailers compose letters at leisure on their computers, then send them by phone line to an on-line service,and then they go forward to the right place. A response can be back within hours,depending on how often the recipient(接受者)checks in.
A vast global networks of on-line services for E-mail has been built. A lot of people are regularly using this service in the USA. People believe that E-mail, the computerized exchange, would create friendship and business developments, and would change people’ s life in the world. Which of the following expression is not for E-mail？
A.Communication in new ag
B.Invisible world
C.A live talk
D.Computerized exchange
Which of the following does the writer think is a shortcoming of E-mail？A.Happening as fast as the travelling of light.
B.No writing and speaking
C.No paper and stamps.
D.Response depending on the recipient.
Which of the following is NOT true？A.E-mail is carried out in computers.
B.A response of an E-mail depends on how often the recipient checks in.
C.People don, t believe that E-mail will create friendship.
D.E-mail is not a real conversation.
第10题
