A、B、C是中学化学中常见的三种元素(A、B、C代表元素符号)。A位于元素周期表

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问题:

A、B、C是中学化学中常见的三种元素(A、B、C代表元素符号)。A位于元素周期表中第4周期,其基态原子最外层电子数为2且内层轨道全部排满电子。短周期元素B的一种常见单质为淡黄色粉末。元素C的原子最外层电子数是其内层电子数的3倍。

(1)在第3周期中,第一电离能大于B的元素有   种;

A与B形成晶体的晶胞如图所示,该晶胞实际拥有Bn-的数目为        

(2)B的氢化物(H2B)分子的空间构型为           ;在乙醇中的溶解度:s(H2C)>s(H2B),其原因是         。

(3)B与C可形成BC42-

①BC42-中,B原子轨道的杂化类型是   

②人们将价电子数和原子数分别相同的不同分子、离子或原子团称为等电子体。与BC42-互为等电子体的分子的化学式为       (写出一种即可)。

(4)A的氯化物与氨水反应可形成配合物[A(NH3)4]Cl2,l mol该配合物中含有键的物质的量为   mol。

考点:物质性质的研究
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连词成句。

1. can, skate, you (?)

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2. your, season, what, is, favourite (?)

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3. the, same, and, are, mitts, mittens (?)

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4. Li Ming, what, doing, is (?)

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信息匹配 (共5小题;每小题2分,满分10分)

请阅读下列餐馆的信息

A.Pasta House --- New Italian restaurant located in the heart of the city. Simple but delicious inexpensive meals. Also has a good range of vegetable-only meals. It's always crowded so be ready to order take-away or share a table.

B. Taste of India --- Famous for its spicy curries and many southern Indian dishes using chilli. You will usually be able to find a table during the week but if you're planning to go on the weekend,  make sure you book a table in advance. Open noon to midnight.

C.Paris Match --- This is the finest French restaurant in the city. Wonderful food you can enjoy in luxurious surroundings. The perfect place to have a romantic meal or impress a business partner, but be prepared for a large bill. Open noon to 2 a.m. Booking essential.

D.Mountain Dinner --- Not fancy but tasty. Excellent Asian and European dishes. Countryside location surrounded by forest. It's at least an hour's drive form the city so you might want to stay at the nearby Mountain Hotel overnight. Open 7a.m. to 10 p.m.

E.Owl Cafe --- Open 24 hours a day. The cafe has a large selection of set breakfast, lunch and dinner meals for you to choose from, or you can enjoy one of their many delicious snacks and desserts over a cup of freshly made coffee.

F.  Greek Bistro --- A lively restaurant that serves great-value Greek food and has live Greek music played by a local band. Customers are encouraged to take part in the entertainment so be ready for a night of loud fun and laughter. Open 6 p.m. to 2 a.m.

以下是五个人的选择要求,请匹配每个人拟选择的地方。

小题1: Bill --- was late getting up today so hasn't had time to make breakfast. He wants to pick up something to eat before he goes to work so that he has enough energy to last through to lunch time.

小题2:Julie --- works in the city and wants to get some lunch. She doesn't want anything too special so long as it is tasty and not too expensive. Julie likes all kinds of food but because she is on a diet she wants to avoid anything containing meat.

小题3: Sally --- has friends visiting her from out-of- town and wants to take them to dinner. She wants to take them somewhere they can enjoy the atmosphere and have fun. She is a university student so doesn't have a lot of money and doesn't like her food too hot.

小题4: Albert --- is a businessman who will meet an important European client for a business dinner next week. Want to book a table at a quiet restaurant that will impress his gust with both its food and its suroundings.

小题5:Robert --- is meeting his friend Ben for lunch today (Tuesday) and wants to take him to a nice restaurant. Both Robert and Ben enjoy good quality spicy food. Robert doesn't like arranging things in advance so he hasn't booked a table.

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文本框可以随文本的增加而自动增大。

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试比较墨儒教育思想的异同。

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运动生物力学

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