某锂电池的电池总反应为4Li+2SOCl2=4LiCl+S+SO2,下列有关说法

题型:选择题

问题:

某锂电池的电池总反应为4Li+2SOCl2=4LiCl+S+SO2,下列有关说法正确的是                   (  )

A.锂电极作电池负极,放电过程中发生还原反应

B.1 mol SOCl2发生电极反应转移的电子数为4 mol

C.电池的正极反应为2SOCl2+2e=4Cl+S+SO2

D.组装该电池必须在无水、无氧的条件下进行

考点:原电池原理的应用原电池的形成条件原电池原理
题型:选择题

阅读下面的短文,并根据短文后的要求答题。

     Dragon-boat Festival (端午节) Dragon-boat Festival also called the Duanwu Festival, is celebrated on the

fifth day of the fifth month according to the Chinese calendar. For thousands of years, the festival has been

marked by eating Zong Zi and racing dragon boats. To hold the dragon-boat races is in memory of Qu Yuan, one

of the greatest poets (诗人) in China. 

     QU Yuan was born in Zigui of Hubei Province over 2,200 years ago. Qu Yuan was an honest minister (大臣)

of the State of Chu, during the Warring States Period (475-221BC) (战国时期). He was upright and wise. He

wanted to bring his country peace and make the State more stronger, but the country was in the hands of bad of

ficials, he failed. At last, he was very discouraged. (1) the Miluo River, throwing, he, into, himself, life, by, his,

ended. (2) 据说当时人们从船上跳下去试图救他。But it was too late. Also, they were very sad and they threw

rice into the water to feed Qu Yuan's spirit.

     (3) Now we read his poem Li Sao which was filled with deep love for his country. We can see the

dragon-boat races and have a kind of Chinese food named Zong Zi to eat during the Dragon-boat Festival.

1.What are the two important things on the Dragon-boat Festival?

                                                                                                    

2.把(1)划线部分的单词组成句子。

                                                                                                    

3.将文中(2)处的汉语句子译成英语。

                                                                                                    

4.把文中(3)处的划线部分译成汉语。

                                                                                                    

5.List the words that can describe the qualities (品质) of Qu Yuan. (at least 3) 

                                                                                                      

题型:选择题

从不同目的出发,可以将地价分成不同种类,按()分类,可分为交易价格和评估价格。

A.土地权利

B.政府对土地的管理手段

C.土地价格形成的方式

D.土地价格表示方法

题型:选择题

如图所示,为等质量的Mg、Zn、Fe与足量相同浓度的稀硫酸反应的关系.横坐标表示反应时间,纵坐标表示生成氢气的质量.据此分析:

(1)等质量的三种金属与足量稀硫酸反应产生氢气的质量最少的金属是______;

(2)与相同浓度的稀硫酸反应时反应最快的金属是______;

(3)据图分析,实验室制氢气时应选择与稀硫酸反应的金属是______,理由是______.

题型:选择题

甲型病毒性肝炎主要通过__________途径传播,乙型病毒性肝炎主要通过__________传播。

题型:选择题

民族自治地方有关调整经济关系的自治条例和单行条例也是我国经济法的渊源之一。 ( )

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