物质的转化关系如下图所示,其中甲可由两种单质直接化合得到,乙为金属单质,F的溶液

题型:填空题

问题:

物质的转化关系如下图所示,其中甲可由两种单质直接化合得到,乙为金属单质,F的溶液中只含有一种溶质,G为酸,乙在G的浓溶液中发生钝化。有的反应可能在水溶液中进行,有的反应中生成物未全部给出,反应条件也未注明。

(1)若用两根玻璃检分别蘸取A、G的浓溶液并使它接近,有大量白烟生成;甲为一种淡黄色固体,D、F的溶液均呈碱性。则

①1.7gA与O2反应生成气态的B和C时放出22.67J热量,写出该反应的热化学方程式               

②D与乙反应的离子方程式是                  

③D的水溶液和F的水溶液中由水电离出的c(OH          (填字母序号)。

(a)前者大            (b)后者大        (c)一样大        (d)不知浓度,无法比较

(2)若B为红棕色固体,C能使品红试液褪色,D的水溶液中加入HNO3酸化的AgNO3溶液有白色沉淀生成。则

①工业上反应I在           中进行,反应III在          (均填设备名称)中进行。

②由两种单质直接化合得到甲的反应条件是                    

③D和乙反应的离子方程式是                 

考点:无机推断
题型:填空题

阅读理解。

     Cars are an important part of life in the United States. Most Americans feel that they are poor without cars.

Though he is poor, he doesn't feel really poor when he has a car.

     Henry Ford was a great automotive pioneer. Maybe, he didn't know how much his cars were going to

affect the United States. The cars made the United States a country on wheels. And they have helped to

make the United States a rich and modern country.

     The cars has become popular in the United States today. The United States is very large. The Americans

like to move around all over the country. It is the easiest and cheapest way to travel around the country in

cars. With a car people can go to any place without spending a lot of money.

1.  In the United States, ________.

A. people think they are not rich if they don't have cars

B. people think they are poor if they have cars

C. poor people wouldn't like to buy cars

D. all the poor people have cars

2. What was Henry Ford?

A. He was a car driver.

B. He was a car maker.

C. He was a car seller.

D. He mended the car.

3. According (根据) to the writer, cars in the United States ________.

A. are the nicest

B. run fastest

C. make the country richer

D. aren't expensive

4. The Americans like to move in cars because ________.

A. moving by car is the fastest way

B. cars can take them to any place they want to go

C. it doesn't take them much money to travel in cars

D. both B and C

5. Which is the best title?

A. A Rich and Modern Country

B. Making cars

C. A Country on Wheels

D. Henry Ford's life

题型:填空题

辅助生产车间如供水、供电车间,通常采用分批法计算成本

题型:填空题

1992年,海基会与海协会达成的共识,是两岸关系的一次历史性突破。下面对“共识”的解释,正确的是

A.海峡两岸均坚持一个中国的原则

B.两岸经济合作、互补、互利

C.两岸实行直接通邮、通航、通商

D.反对台独,主张台海和平稳定

题型:填空题

从银行角度来讲,资产转换周期是银行信贷资金由()转化为实物资本,再由实物资本转化为金融资本的过程。

A.资产资本 

B.资金成本 

C.金融资本 

D.金融资产

题型:填空题

水利水电工程的等别是根据()等指标分为五等。

A.水库总库容、治河、治涝、灌溉、供水、发电

B.水库总库容、防洪、治涝、泄洪、供水、发电

C.水库总库容、防洪、治涝、治河、供水、发电

D.水库总库容、防洪、治涝、灌溉、供水、发电

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