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Text 18. Beautiful and picturesque posture

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    To be honest, Li Weihong was quite partial to Miss Wu Di. Even though her chemistry scores were mediocre, he couldn't help but accepted many gifts. Before the start of this semester, he was lucky enough to be invited to the "Prosperous Age"  After eating a meal, the price of this meal was equivalent to two months of his salary Although Li Weihong is also an experienced teacher, he is not as "characterful" as English teacher Huang Ying.  He was very smooth in dealing with things, so even though his teaching level was average, he became the leader of the chemistry teaching and research group by virtue of his qualifications and connections.  Moreover, Wu Di's appearance is also very lovable. He always favors pretty girls, and he likes to take the initiative to advise these girls on chemistry problems. However, because of this, Li Weihong is definitely a wretched pervert in the eyes of boys.  Even though he never dared to touch a female student.  But at this time, Li Weihong saw that Wu Di was deserting class so unscrupulously. Even if he favored Wu Di, he couldn't turn a blind eye to it. At this time, he was talking about an example he assigned - Potassium iodate (kio3) and potassium iodide in acidic solution  The following reactions can occur.  Please indicate the direction and number of electron transfer in the reaction equation, and indicate the oxidizing agent and reducing agent.  5ki+kio3+3h2so4=3i2+3k2so4+3h2o In this reaction, the ratio of the amount of oxidant and reducing agent is 1/5.  Question: When 10 mol electrons are transferred, what is the amount of i2 material produced?  Li Weihong did not directly call Wu Di's name, but said to the whole class: "Everyone use scratch paper to do it below. I will ask someone to answer this question later." He originally thought that after he did this, Wu Di  You can get back to class from being distracted, that's it.  He didn't need to call Wu Di's name. After the other party stood up, he couldn't answer the question anymore.  But what made Li Weihong very helpless was that even the boys who were not paying attention in class began to lower their heads after he said this.  She took out her scratch paper and calculated. Regardless of whether these boys were pretending or not, at least their attitude satisfied him. But Wu Di was still in a daze, even though her clone Wu Di had already figured out this simple chemistry problem for her.  Answer.  There is no other way but to click Wu Di to answer the question after that. If she can't answer the question then, use a kind tone to remind her to pay attention in class.  I hope she can pay attention next time Li Weihong thought this way.  In fact, although he prefers beautiful girls like Wu Di, he is a little unhappy when she is so distracted in his class. In high school, as long as he is a teacher, unless he is the one who has no sense of responsibility, he will be a little unhappy.  They all hate students who don't listen carefully in class.  That will make the teacher feel that he has done useless work and the lectures are not attractive.  Not respected by students.  Soon, Li Weihong said that the time was up and he wanted to ask someone to get up to answer this question. For a while, the class was silent and the atmosphere became slightly tense, especially the boys.  Because if they stand up and fail to answer, they will be criticized mercilessly by Li Weihong. As for girls, they are treated much better than boys.  "Wu Di, please get up and answer." Li Weihong confirmed that he had used the gentlest tone.  As a result, Wu Di still didn't respond.  This is not because she deliberately pretended not to hear, but she really did not hear it. Her style is that when she focuses on one thing, she will be completely immersed in her own world.  The whole class's eyes suddenly moved to Wu Di. It was still unclear that this young lady was completely distracted!  The students had different thoughts: "The eldest lady deserves to be the eldest lady. Even her posture when she is distracted is so graceful and picturesque. She is just like my Kobe Bryant. Even though the turnaround and fadeaway jumper is not as good as iron, her posture is as beautiful as  Painted, is this a reason to criticize? Those hackers are so annoying!" This is the idea of ??the young basketball player named Zhang Bo, who is a super fan of the Lakers.  "It's completely understandable that your mind wanders! And it can be done so beautifully The most important thing is that this is supposed to be an activity class, and this bitch like Li Weihong wants to take away these ten minutes. It's so hateful.  !¡± This is what most boys think.  "Teacher Li should have noticed that Wu Di was distracted, right? But he still called her in such a gentle tone. He was really too tolerant of her. If it was Teacher Huang, he would have just thrown the chalk out." Some girls thought so.  With.  "The sinister girl is definitely doomed this time. The whole class saw her making a fool of herself. It seems that good will be rewarded with good and evil will be rewarded with evil. It's not that the time has not come for us not to repay, hahahaha" Wang Qi was here  She was ecstatic in her heart, but her face was very calm. She deliberately did not remind Wu Di, just hoping that Wu Di's "ugly behavior" would last longer!  She naturally doesn¡¯t understand that in this world where faces are judged, a goddess will never be ugly, and the mentality of many boys isThe movement proves this.  "The teacher asked you to answer a question." The reminder from Wu Di finally woke Wu Di up, and she also had the answer to the question in her mind.  Under the gaze of the whole class, when she stood up, her eyes were still confused, with the posture of an innocent girl, and she cutely killed countless young people who had been secretly in love for a long time.  Li Weihong sighed slightly, but still said kindly: "Okay, classmate Wu Di, you" Before he could finish speaking, Wu Di began to give a very standard answer "The oxidizing agent is kio3, and the reducing agent is  ki. In this reaction, the ratio of the amount of oxidant and reducing agent is 1/5. The iodine element is both an oxidation product and a reduction product. One mole of the six moles of iodine atoms in three moles of iodine element comes from potassium iodate.  Five moles come from potassium iodide. 5 moles of potassium iodide are used as reducing agents, and the iodide ion rises from negative one valence to zero, losing 5 moles of electrons; 1 mole of potassium iodate is used as the oxidant, and the iodine in the iodate radical changes from positive five valences.  Reduced to zero, 5 mol electrons are obtained. When 5 mol electrons are transferred during the reaction, 3 mol iodine elements are generated, so when 10 mol electrons are transferred, the amount of i2 substance generated is 6 mol.  " Wu Di's voice is very beautiful, and her calm and unhurried tone when giving answers also made many people admire in their hearts. They completely forgot that Wu Di had just been distracted. When they came back to their senses, they naturally felt  It's incredible. I can be so distracted and so distracted, but I can still answer so accurately. Isn't this amazing?  Li Weihong was about to comfort Wu Di, but before he finished speaking, he heard a completely correct and detailed answer. His mouth was open, and he didn't know what expression to use on his face, obviously because he didn't expect it at all.  , Wu Di was actually able to counterattack in this situation.  (To be continued)
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