皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
对于可逆反应:4NH 3 +5O 2 4NO+6H 2 O,下列叙述正确的是( )
A.
NH 3 和H 2 O的化学反应速率关系是2V正(NH 3 )=3V正(H 2 O)
B.
容器内的总压强不随时间的变化而变化,达到化学平衡状态
C.
达到化学平衡时,升温,则正反应速率增大,逆反应速率减小
D.
若单位时间内生成x mol NO的同时,消耗x mol NH 3 ,则反应达到平衡状态
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【多选题】Which are the true statements?
A.
Gender has a social and relational quality.
B.
Sex is biological and permanent.
C.
Gender are socially-constructed.
D.
Gender varied over time and across cultures.
【判断题】High-context cultures are relational, collectivis t, intuitive, and contemplative.
A.
正确
B.
错误
【判断题】Low-context cultures (including North America and much of Western Europe) are relational, collectivist, intuitive, and contemplative.
A.
正确
B.
错误
【简答题】________________ is defined as the perceived and/or actual incompatibility of values, expectations, processes, or outcomes between two or more parties from different cultures over substantive and/or r...
【简答题】溶液生长法的两种类型
【判断题】Low-context cultures are usually relational, collectivist and intuitive.
A.
正确
B.
错误
【单选题】下列说法与盐类的水解有关的是(  ) ①明矾和FeCl 3 可作净水剂; ②为保存FeCl 3 溶液,要在溶液中加少量盐酸; ③蒸干AlCl 3 溶液不能得到无水AlCl 3 ; ④NH 4 Cl与ZnCl 2 溶液可作焊接中的除锈剂; ⑤实验室盛放Na 2 CO 3 、Na 2 SiO 3 等溶液的试剂瓶应用橡皮塞,而不能用玻璃塞; ⑥用NaHCO 3 与Al 2 (SO 4 ) 3 两种溶液可...
A.
①④⑦
B.
②⑤⑧
C.
③⑥⑨
D.
全部
【单选题】据报道,北京市的一名小学六年级的学生对5种洗衣粉进行磷酸盐测定,发现两种号称无磷洗衣粉的溶液中磷酸根浓度比有磷洗衣粉还高出一倍。后来,在老师指导下,通过实验发现两类洗衣粉都会使小球藻狂长,无磷洗衣粉还更甚。为此,这位同学向国家环保总局提出了两条建议。该学生的做法()
A.
坚持实践第一的观点
B.
发挥了合理的想象
C.
运用了创造性思维
D.
重视主观世界的改造
【单选题】The high-context cultures are collective, intuitive, contemplative and _______.
A.
logical
B.
linear
C.
relational
D.
action-oriented
【单选题】Which statement is NOT true about Low Context cultures?
A.
Value being articulate and clear
B.
Consider in-group membership and “we-talk” towards building relational closeness
C.
Usually aim at efficiency, concise use of words, and elaboration of unclear meanings
D.
Value documents and contracts, to be signed as legal and binding for each partner equally
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题