love you like a song

The test time for the additional test is 45 minutes, with a total score of 180 points, four major questions, and each question has a high score.In other words, no matter how good the previous answer is, if there is a question in the extra test that has not come, it is over, and you can pass No.1 directly.

Mu Zi'an leaned on the sink, took a deep breath for a long time, calculated the time to answer each question, and slowly calmed down.

As a high school teacher, she can't do worse than high school students, can she?

With her many years of experience, the main test of the chemistry competition for high school students is to answer questions and use them flexibly. This kind of problem-solving method is Mu Zi'an's strong point, which makes full use of her analytical ability.

She did best, and by all accounts, organic chemistry.

Mu Zi'an shook his face and returned to the examination room.

Ignoring Shi Qing, she just sat on her seat and closed her eyes to meditate.

After the exam started, Mu Zi'an aimed at the first question, which was not too difficult, it was to deduce the chemical formula of amoxicillin.

Although Mu Zi'an didn't know the molecular formula of amoxicillin, she could deduce the last organic compound according to the prompts one after another.After Mu Zi'an spent 7 minutes solving this problem, he immediately turned his head to look at the next three big problems.

Because the second question is more difficult than the first question, but the score is not very prominent, she looked at the third question as it should be, and wanted to wait until she finished solving the third and fourth questions before going to see it. Second question.

The third question is to find the equilibrium constant of I2I-=I-3 in aqueous solution, fifty points, and over the years, it is not considered the most difficult.

After becoming a high school teacher, Mu Zi'an was very depressed for a while, but he never gave up chemistry. In addition, some students in the school also wanted to sign up for this kind of chemistry competition, and even gave Mu Zi'an money to help her with tutoring.

So Mu Zi'an had seen many chemistry competition questions in his previous life, and he couldn't be regarded as 80.00% able to solve them, but he was [-]% sure.

The fifty-point question was very step-by-step. She wrote down all the steps she could think of carefully, and did it slowly, but there was a feeling of flowing water. The whole question was written in a natural way, and the answer was very smooth.

After about twelve minutes, Mu Zi'an raised his head, saw that it took less than half of the time, and heaved a sigh of relief.

Both the second question and the fourth question were more difficult to varying degrees. Even though Mu Zi'an was mentally prepared, he still sighed that the sentence was cruel, but he didn't dare to waste time, so he lowered his head and wrote quickly.

Minutes and seconds passed, after all, Mu Zian still underestimated, it took nearly 7 minutes to finish the second question.

Time is running out, there are still 9 minutes.

She broke into a cold sweat and glanced casually at the last question.

It's not a chemical reaction question related to boiler water additives like the second question, but a question about finding the number of electrons in an element. Mu Zi'an quickly changed his mind and warned himself - don't panic, you still have nearly 9 minutes left time.

In his previous life, Mu Zi'an almost read the last question at this time, but he only finished half of it because he ran out of time.

At that time, she thought about how to solve the problem for too long, and after she figured it out, there were almost 3 minutes left, and she had to calmly sort out her thoughts while calculating, and suffered a lot.

This time Mu Zi'an will not do this, she has to fight!Isn't she very good at mental arithmetic, so the calculation steps on paper can be calculated directly in her heart, saving time for drafting.

However, Mu Zi'an read the questions three times over and over again, but only a few thoughts came out. Chemistry competitions are not like biology competitions. Biology competitions are all multiple-choice questions, and the chances of getting confused are too high.

Chemistry is not good, it has to be developed step by step. If the previous step is wrong, then the next step will be all wrong, and if the key parts are not written, even if the answers are all correct, it may not necessarily get full marks.

Right now, Mu Zi'an didn't have any ideas, seeing the little people in front of her wandering around saying 'these chemical formulas are not enthusiastic', she looked up at the clock, there were 8 minutes left.

The consequence of excessive eye fatigue is that after raising the head, the eyes are blurred.Mu Zi'an sighed, put down his pen, and rubbed his temples.

It is not bad to complete three of the four major questions, and this level is considered a miracle for first-year junior high school students.If it wasn't for the fact that the person sitting behind was her former competitor, she even felt that it would be enough to answer two questions.

After all, as long as one of the additional test questions is correct, one has already qualified for the final.

Mu Zi'an knew that if there were no accidents, she should still get No.1.

When Shi Qing was 14 years old, Mu Zi'an had already defeated him who had done three questions by answering three and a half questions correctly.And Shi Qing, who is now nine years old, has no ability to solve the three questions at all.

Now Mu Zi'an only needs to think about how famous she will be in the future...

After all, a 12-year-old junior high school student won No. 1. How big a sensation was that?The National Chemistry League for High School Students is open to the whole world. If she wins this shot, she will naturally be recommended to colleges and universities.

However, Mu Zi'an still felt reconciled. Before he was reborn, he hadn't been able to complete the final fourth question. Could it be that he couldn't improve after rebirth?

Can't you?

Mu Zi'an secretly scolded himself, and did it all over again, if he still doesn't know how to make progress, then what is the difference between himself and a waste?She wants to be someone who can stand side by side with Gu Nan.

Thinking of this, Mu Zi'an suddenly opened his eyes, watching the remaining 7 minutes, and began to bite the cap of the pen in his hand when he was nervous, making a creaking sound.

Hearing the noise, Shi Qing who was behind frowned and continued to do the questions.

Mu Zi'an was immersed in her own world, sporadically, she felt that this kind of question was very familiar. Although she had never seen the original question, she had seen similar question types in the reference book on chemistry league analysis.

Yes, she has actually seen this type of question before, but she was too scared and forced herself to keep hinting: I don't know how to do this kind of question.

Mu Zi'an thought desperately, and seemed to remember the solution to this problem in a daze.

She once saw a science champion in the college entrance examination do this type of question. Although the method is very simple, the amount of calculation required is astonishingly large.

Mu Zi'an took a deep breath, and said to himself that you can definitely do it.When doing the questions is no longer a burden, but just to catch your breath, then the chemistry questions become very easy.

2的4次方……4的12次方……12的36次方……6.191736422乘以10的10次方……

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Little angel, how about collection encouragement?Second Grandpa has a stomachache...