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有X、Y、Z三种单质和甲、乙、丙三种常见的化合物，它们有如下图及叙述所示的关系，据此回答下列问题 ⑴X、Y、Z都是短周期元素的单质，X元素原子的最外层电子数是其次外层电子数的2倍；Y元素有两种常见单质，二者质量相等时其物质的量之比为3 ：2；Z元素原子的次外层电子数是其最外层电子数的4倍。则：①写出化合物甲的电子式__________；②写出Z与甲反应的化学方程式____________________。 ⑵X、Y、Z都是非金属单质，X是原子晶体，Y、Z都是分子晶体，X、Y都能与强碱溶液反应；乙的水溶液是工业三酸之一，也是实验室常用试剂。则： ①写出X与NaOH溶液反应的离子方程式__________________________________； ②Z与甲的反应的一种重要工业用途是_____________________________________； ③在①所得溶液中加入乙的溶液，观察到的现象__________________________。 ⑶X、Z是常见金属，Z与甲的反应只有在高温下进行，甲是一种具有磁性的化合物，工业上常用于制取Z单质。则： ①写出乙与NaOH溶液反应的化学方程式___________________________； ②将①所得溶液与小苏打溶液的混合观察到的现象____________________________； ③将等物质的量的X和Z分别与足量的稀硫酸反应，当两种金属完全溶解后，得到气体的质量之比是 ____________。
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参考答案：
举一反三
【判断题】You must understand every word or sound while lisening.
A.
正确
B.
错误
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【单选题】甲公司2015年7月1日从银行借入资金300万元用于研发一项专利,该借款期限为3年,年利率为6%,到期一次还本付息。不考虑其他因素,该公司2015年的利息费用是( )万元。
A.
18
B.
9
C.
54
D.
36
查看完整题目与答案
【单选题】听力MP3下载地址：http://www.shuashuati.com/share/p3329868.html PART II LISTENING COMPREHENSION [20 MIN] In sections A,
B.
and
C.
you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on Answer Sheet Two. SECTION A CONVERSATIONS In this section you will hear several conversations. Listen to the conversations care fully and then answer the questions that follow. Questions1 to 3 are based on the following conversation. At the end o f the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation. Who will select the Best Actress nominees for Academy Awards? [A] A group of learned film producers. [B] A group of established directors. [C] A group of enthusiastic audience. [D] A group of well-known actors.
查看完整题目与答案
【简答题】Reading Comprehensi Reading Comprehension.docx on.docx
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【单选题】What does the author mean by 'the blocking of some 'questionable' site was not comprehensive' (Line 1, Last Paragraph)?
A.
Some websites escape from being detected.
B.
The NIS program is not effective in other countries at all.
C.
All the websites in New Zealand should be included in the list.
D.
The website Playboy should be included in the list of no-go area.
查看完整题目与答案
【判断题】使用del命令或者列表对象的remove()方法删除列表中元素时会影响列表中部分元素的索引。
A.
正确
B.
错误
查看完整题目与答案
【单选题】In the last paragraph, the author thinks that pictures ______.
A.
should be made comprehensible
B.
should be made interesting
C.
are of much use in our life
D.
have disappeared from our life
查看完整题目与答案
【判断题】使用 del 命令或者列表对象的 remove() 方法删除列表中元素时会影响列表中部分元素的索引。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Unit 3 Lisening Task 1 选词填空 get on, bear, consult, consignment, urgency
查看完整题目与答案
【判断题】使用del命令或者列表对象的remove()方法删除列表中元素时会影响列表中部分元素的索引。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【判断题】You must understand every word or sound while lisening.
A.
正确
B.
错误
查看完整题目与答案
【单选题】甲公司2015年7月1日从银行借入资金300万元用于研发一项专利,该借款期限为3年,年利率为6%,到期一次还本付息。不考虑其他因素,该公司2015年的利息费用是( )万元。
A.
18
B.
9
C.
54
D.
36
查看完整题目与答案
【单选题】听力MP3下载地址：http://www.shuashuati.com/share/p3329868.html PART II LISTENING COMPREHENSION [20 MIN] In sections A,
B.
and
C.
you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on Answer Sheet Two. SECTION A CONVERSATIONS In this section you will hear several conversations. Listen to the conversations care fully and then answer the questions that follow. Questions1 to 3 are based on the following conversation. At the end o f the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation. Who will select the Best Actress nominees for Academy Awards? [A] A group of learned film producers. [B] A group of established directors. [C] A group of enthusiastic audience. [D] A group of well-known actors.
查看完整题目与答案
【简答题】Reading Comprehensi Reading Comprehension.docx on.docx
查看完整题目与答案
【单选题】What does the author mean by 'the blocking of some 'questionable' site was not comprehensive' (Line 1, Last Paragraph)?
A.
Some websites escape from being detected.
B.
The NIS program is not effective in other countries at all.
C.
All the websites in New Zealand should be included in the list.
D.
The website Playboy should be included in the list of no-go area.
查看完整题目与答案
【判断题】使用del命令或者列表对象的remove()方法删除列表中元素时会影响列表中部分元素的索引。
A.
正确
B.
错误
查看完整题目与答案
【单选题】In the last paragraph, the author thinks that pictures ______.
A.
should be made comprehensible
B.
should be made interesting
C.
are of much use in our life
D.
have disappeared from our life
查看完整题目与答案
【判断题】使用 del 命令或者列表对象的 remove() 方法删除列表中元素时会影响列表中部分元素的索引。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Unit 3 Lisening Task 1 选词填空 get on, bear, consult, consignment, urgency
查看完整题目与答案
【判断题】使用del命令或者列表对象的remove()方法删除列表中元素时会影响列表中部分元素的索引。
A.
正确
B.
错误
查看完整题目与答案
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