题目内容
配位平衡是有条件的，因溶液的酸度增大而导致配离子离解是作用称为酸效应
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在形成螯合物时，螯合环的大小和数目，影响了螯合物的稳定性
配位数是指配合物中配位体的数目
Compare each pair of words and complete the following sentences with the right one.1. retire, retiredMy parents are both ___________ teachers.Ben wants to ___________ next year.2. romance, romanticAfter a short ___________, the couple announced their engagement (订婚).I saw a lovely ___________ comedy yesterday.3. thorough, thoroughlyThe doctor was very ___________ and asked me lots of questions.Wash the fruit ___________ before eating.4. hopeless, hopelesslyI looked around ___________, finding no one at theplace.It’s a ___________ dream for us to win the footballgame.
Complete the following sentences with the words given below. Change the form if necessary.register credit figure stuffunderline title desert literature1. My English class is worth three ___________.2. A(n) ___________ is a large area of land, usually in a hot region, where there is almost no water, rain, trees, or plants.3. She ___________ that she should do some volunteer work.4. She is studying German language and __________.5. This magazine has a lot of interesting __________ in it.6. —What’s the ___________ of this movie?—Hero.7. How many students have ___________ for the English class?8. ___________ the new words and remember them after class.
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