ilovetlic001
ilovetlic001
呃,性格变了饿
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the sun get fat
煋人
铬酸根离子能和什么阳离子生成黄色沉淀?
Ge可以和稀硝酸反应吗?
混乱的日子啊.... PS..此时播在房间里睡觉,为什么我没照相机~~~!!!!
请问H3NBF3这玩意儿叫什么?
不知道发不发得出来
闭合式硼键中三个硼的成键方式是怎么样的? 怎么杂化?空轨道怎么处理?成键的两个电子怎么样由3个B提供?
我该说什么好呢.... 一切都在归于平常似乎什么都没发生过...但是有些心境却是永远回不来的睡觉了
...
波,我要了解你!!!
【积累】2、碱金属和碱土金属含氧的二元化合物 碱金属和碱土金属可以与氧形成普通氧化物,除Be还能形成过氧化物,Na,K,Rb,Cs,Sr,Ba还能形成超氧化物和臭氧化物。
C和V这两个单位用国际单位制基本单位如何表示?
哪里有英语录音下载...电影的.. 半天BAIDU找不到,破的BAIDU
be asleep for two hours
转,话剧 Chemical Spirit Characters: Antoine Laurent Lavoisier (L) His parents His teacher His assistant His friend, Jacque (J) Maximilien François Marie Isidore de Robespierre (R) The revolutionary people Other people (1) (1743 A.D. Paris. Lavoisier’s home.) L’s father: look at our baby, dear. Isn’t he cute? L’s mother: Yes. What will we name him? L’s father: Let me see… What about Antoine? That’s a good name. It means “respectable, praiseworthily”. L’s mother: Wonderful! And…middle name. Laurent …Laurent. Means “laurel”. Victory and honor. What do you think? L’s father: Perfect .Behold —our son , Antoine Laurent Lavoisier! L’s mother: Isn’t he clever? I’m sure he’ll be a great man in the future. (2) (Antoine was a teenager, a young student at school.) L’s teacher: Now everyone, as you know, everything in this world is made up with ash and phlogiston. When something burns, the phlogiston will go into the air and leave the ash. Understand? (Antoine put up his hand) L’s tecaher: What do you want to say? L: Sir, if phlogiston theory is true, the ash should be lighter than the thing before. But sometimes it’s even heavier. I doubt the correctness of phlogiston theory. L’s teacher: Phlogiston theory was discovered by the greatest scientists. It can’t be wrong. L: Great scientists make mistakes sometimes. L’s teacher: You——tell your parents to come to me after school. J: Antoine, you shouldn’t have said that! Now you’re in trouble. L: But I just want to … L’s teacher: Stop talking! (After school. Antoine’s parents came to school. In teacher’s office. Antoine sat alone in the corner) L’s teacher: Mr.& Mrs.Lavoisier. Antoine is a good student, smart, hard-working, very good at chemistry, but (clears throat) he’s too …too arrogant. He doubts the correctness of phlogiston theory! Maybe you should teach him to be modest. L’s mother: Sir, I think before we prove his idea wrong, my son has the right to doubt a theory. L’s teacher: But this theory is right! L: (shakes head) No. No no. Someday I’ll let them know…(run away) (3) (1788 A.D. Antoine —Mr. Lavoisier the chemist, was experimenting in his laboratory with his assistant) L: looking at the mercury in the container)Let’s see .If we seal this before we heat it… L’s assistant: Sir, we’ve failed many times, what if we fail this time? L: No, don’t say that. You know what? We must be confident. Believe in us. We can prove we are right. Show them. Ok? Now, let’s weigh this …(seals the container and weighs it) L’s assistant: I’ll take a note of this. (Writes) Done. L: Good. Now let’s heat it and see what will happen. (They heated the container. 10 days later) L’s assistant: Still nothing happens. Sir, maybe… L: We have to wait for one more days or two. Remember that time When we heated the rusted mercury? We got that gas, which would make candles burn brighter, and the rusted mercury became mercury again and lost some weight. That kind of gas must be something. Just wait.
................伟大的化学家 http://post.baidu.com/f?kz=202741635
烦
找了一些让人曰不出话的BAIKE http://baike.baidu.com/view/386115.html
.......
请熊看消息
不行..
沉淀溶解平衡的小问题 溶液中[CuCl2]=1mol/L,[HCl]=10mol/L,向里面通H2S到饱和(约为0.1mol/L)求平衡时候,溶液中的[H+]和[Cu2+]Ksp=6.3*10^-36,H2S的K1*K2=1.3*10^-20我只是想问,这个答案里的[H+]是12mol/L,这里面提供[H+]的不只有HCl吗,怎么浓度会是12mol/L不是10mol/L呢?
一年多了...
...睡觉去
回学校了
对联.... 上联:3.14159下联:2.71828........................
晕! 4月25号上网的现在才发短来扣我钱...效率也太高了点
HY是谁?
走之前再玩一会 回学校看化学,直接54作业..........
...... 吧乱了..睡觉去
主任's爪子 喜欢这个~专门发出来
这个注意实在是太高明了!@!!!! 为什么以前没想到呢.........否则就真有好看的了
呃..看了好会书..累 五一不充实...但目标还是可以达成的...
终于回到广州了..
我还是可以上来
终于给我算出来了,兴奋中..
输了..
落后8分ing.....
晕....搞得9郁闷了... 我认错..知错了
波都玩RO了.........世道变得真快
做物理作业ING...上来灌一水
计算题,怎么算都对不上答案 某温度下,100kPa时反应2NO2==N2O4的标准平衡常数为3.06,求NO2的平衡转化率按说这是很简单的题目,但是列了方程出来以后怎么都算不到正确答案.有人可以帮忙一下吗?
觉是一定要睡的,书是一定要看的 可惜烧是很可能会发的...........
人呢!!!都忙什么去了...
关于质量作用定律 r到底是哪个物质的反应速率呢?举个例子,像反应O3+CH2==CH2--→2HCHO+O这个的反应速率方程是r=k[O3][C2H4]也就是是说当O3\C2H4的浓度一定时反应速率r是一定的但是这个反应速率r指的是哪一个呢?是O3的消耗速率?C2H4的消耗速率?HCHO的生成速率?还是O的生成速率?
不知道该不该赞扬 http://post.baidu.com/f?kz=197159738
睡觉了
..
没人在了吗?
问一个问题 这张图,还有这一类型的图,是不是y轴都没有按照严格的比例画的?
。。。
【积累】1、碱金属和碱土金属元素的矿物 锂辉石:LiAlSi2O6钠长石:NaAlSi3O8岩盐:NaCl硝石:NaNO3光卤石:KCl·MgCl2·6H2O天然氯化钾:KCl钾长石:KAlSi3O8铯榴石:(Cs,Na)4Al4Si9O26·H2O绿柱石:Be3Al2Si6O18白云石:MgCO3·CaCO3菱镁矿:MgCO3泻盐:MgSO4·7H2O尖晶石:MgAl2O4无水钾镁矾:K2SO4·2MgSO4滑石:Mg3Si4O10(OH)2方解石:CaCO3石膏:CaSO4·2H2O萤石:CaF2磷灰石:Ca5(PO4)3F天青石:SrSO4菱锶矿:SrCO3重晶石:BaSO4毒重石:BaCO3
化学动力学.. 继续BS
.. http://hi.baidu.com/luoshane/blog/item/9c244bda2f51e3dbb7fd481f.htmlUltraEdit-32
走人前的赞扬
准备就绪 坐会五点半或者四十五走
都差不多回去了。..
下雨了
活人啊....其实,太自由也是一种折磨
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