love you like a song

In my memory, that year, Mu Zi'an was not as good as he is now, because he has experienced too many dark sides, and he is already a student who is a student who eats and waits to die.

After Gu Nan came to his home to adopt her, in order to let her regain her self-confidence, she also privately signed up for a chemistry competition below the provincial level.

The first competition was an imitation of the international competition, and it was also about guessing the heads and tails of the coin. However, at that time, she didn't know how to choose the question type.

And her opponent was a 15-year-old boy, who was more than two heads taller than her. At that time, she was even a little scared, and tightly hugged her schoolbag, which was bigger than her face, in her arms. They all shed tears.

At that time, Gu Nan waved to her and asked her.

"Doudou, what's the matter?"

"Mr. Gu, I'm afraid, my grades are not good... and I don't know how to choose the question type."

Gu Nan rubbed her soft hair, with a slight smile in his eyes, and said in a warm voice.

"Then how about Doudou choosing the front? Choose the front, the teacher will always be on the side of the front, you don't need to feel afraid, and you don't need to be afraid, because I will always be by your side and accompany you."

"I choose A question type."

Mu Zi'an stood under the screen - facing Gu Nan's direction -.

Even if he couldn't understand what Mu Zi'an was saying, the meaning of this gesture was extremely obvious, Lang Ri whistled loudly.

Hehe, don't think that if you choose an easy question type, you will win for sure. No matter how difficult or easy, Yinyue is very good at it!He will let this girl realize how cruel the International Chemistry Competition is!

The referee asked the two to come forward, carefully checked whether they were wearing electronic devices, and asked the two to exchange answering boards. After checking each other, the game officially began.

The two walked to both ends of the big screen and stood up.Mu Zi'an leaned back, leaned back, lazily leaning against the billboard, his dark eyes were filled with peace.

The referee put down his raised hand and signaled the start of the written test.

"Question [-], please write down on the answer board the chemical reaction equation and reaction phenomenon involved in the calibration of sodium thiosulfate solution."

In less than a minute, 'Lang Ri' has already pressed the button to complete the answer.

This is completely different from him before!At this time, Lang Ri seemed to be a different person, with his back bent almost 130 degrees, and he said in an extremely cold voice.

“第一步反应：Cr2O72-6I-14H=2Cr33I27H2O反应后产生定量的I2，加水稀释后用硫代硫酸钠标准溶液滴定。”

“第二步反应：2Na2S2O3I2=Na2S4O62NaI以淀粉为指示剂，当溶液变为亮绿色，即为终点。”

The referee was stunned for a moment, as if he didn't expect someone to answer the competition difficulty question so quickly. Although it was only A difficulty, it was still very difficult.

He announced with emotion.

"correct answer."

This is strength!And it is the strength of the top British players!

And Mu Zi'an...

Still face up, jaw raised high, a very confident look, but the answer board is very shameless, blank.

The whole place was silent.

This... this... Although the international competition is not easy, there is not even a word, what's going on? ? ?

Is this player really a professional?

Even 'Lang Ri', who was replaced by Yin Yue, was stunned.He had thought that the little girl opposite might be very weak, but he didn't expect that she was so weak... Or was it because she was too nervous for the first time, and the first question was just a coincidence?

Yinyue scored the first question in the written test for the first question in the Yinyue Singles Competition. Mu Zi'an had no idea and just went blank.

Mu Zi'an stood on the left side of the big screen, Yin Yue stood on the right side of the big screen, the referee raised his right hand high, and the number on the electronic scorer changed from eight to ten.

"At 5:10, Long Ri is ahead."

As soon as the big screen changed, the second question of the written test came out.

"Question [-], why should the experiment be placed in a dark place to avoid exposure to light? Why should a large amount of water be added to dilute the standard solution of sodium thiosulfate before titration?"

Yinyue suddenly let out a low growl, and at the same moment when the answering board was in line with his line of sight, his writing speed flew, and he pressed the red button to finish answering again quickly and abruptly.

At the same time, because of his great strength, on the TV, the audience could also clearly see the muscles in the upper part of his upper arm bulging rapidly, causing the button to make a mournful sound.

The assistant referee reviewed his answer board, and the projector showed Yinyue's answer on the camera.

"First, to proceed with the reaction, add excess KI and H2SO4, shake well and place in the dark for 10 minutes. In this reaction, the speed is slow, and the reaction can only be quantitatively completed after 10 minutes of standing."

"Adding excess KI and H2SO4 is not only to speed up the reaction, but also to prevent the volatilization of I2. At this time, I3-complex ions are generated. Because I- is easily oxidized by oxygen in the air in acidic solution, I2 is easily decomposed by sunlight. , so it needs to be placed in a dark place to avoid exposure to light."

"Second, after the first step reaction, add a large amount of water to dilute before titrating with sodium thiosulfate standard solution. Since the first step reaction is required to be carried out in a strongly acidic solution, the reaction between Na2S2O3 and I2 must be carried out in a weakly acidic or medium in neutral solution."

"Therefore, it needs to be diluted with water to reduce the acidity and prevent the decomposition of Na2S2O3. In addition, because the Cr2O72-reduction product is Cr3, which is dark green, which hinders observation. After dilution, the concentration of Cr3 in the solution is reduced, and the dark green becomes lighter, making the end point easy to observe."

Yinyue completed the perfect answer again, this time with a little explanation, and although Mu Zi'an also started to write this time, but...

It may be because Yinyue's speed is too fast, she only wrote one or two words.

In every game, no matter who the opponent is, Yinyue will undoubtedly give his best, so he shouted his signature voice again, only to find that the opponent is so weak.

The voice was stuck in his mouth, he couldn't spit it out, he couldn't swallow it, and it abruptly turned into a questioning voice.

"ah…………???"

The people in the British live broadcast room were also dumbfounded.

"This... this... this Chinese player..."

"Genius of the 'Shi Qing' type, don't tease me, it's just that you're young, so you're here to make up the numbers?"

"Haha, where did the comedian come from???"

"Looking at Yinyue made me feel stupid... Before, seeing her experimental techniques, I thought she had some skills..."

"I think Lang Ri can abuse her completely, Yin Yue should go back, it's so pitiful..."

"Go back as soon as you come out, Yinyue is so pitiful."

"I think this Chinese player is still very distinctive, haha."

Gu Nan's tense face finally collapsed again, she knew it!She just knew it!She just knew it!Although she didn't know what she knew, she just knew!

The calm Shi Qing couldn't hold back anymore, he looked at Gu Nan with a difficult expression, and his words were more tactful.

"Cousin, is that person......... Has he only studied the most basic experiments...?" The implication is that once encountering theoretical questions, Mu Zi'an will be completely confused. ah?

Gu Nan glanced at him, with a paralyzed face, and said with certainty.

"No, Doudou used to be very powerful."

Yes, ever.

Once, she beat you.

On the court, Langri led by 5:12.

"The second question in the experiment: the determination of Cu. The addition remains the same - repeat three times, and the score will be calculated based on the best one."

Mu Zi'an used the same posture as Langri, picked up the solution to be tested in the 100ml volumetric flask, filled it with distilled water, diluted the solution to be tested to the mark, and shook it well.

The mouth of the bottle was tilted, and after a crisp sound of running water, she poured the liquid directly into the Erlenmeyer flask, but...

Yinyue was watching from the side, and she realized something was wrong just after looking at it. Although the tilting posture looked correct, she had never measured it with a measuring cylinder at all!

How are you sure it's 10.00ml?

Having sufficient experience in chemistry, she regained her senses in time and continued the experiment. When she turned her head, she found that the other party could not even hold the Erlenmeyer flask steadily, and Yin Yue looked bewildered. "..."

Compared with this kind of person, Lang Ri is only eight to five, and he is still complacent about it, so stupid... How can I have such a stupid personality?

These two questions seem to have fully reflected Mu Zi'an's true level. Gu Nan's face was numb, Li Yan was dumbfounded, Shi Qing had a complicated expression, and Mu Jinxiu couldn't make any expressions...

The British team even laughed unceremoniously, pointing at Mu Zi'an on the field, even the most impartial referee was a little embarrassed, and finally understood the sentence Gu Nan said What does "our players are wrong" mean.

But the person on the field whose points were deducted miserably was still smiling at this moment!It seems that there is no hurry at all!There is quite the indifference of "letting others mock me, I will stand still".

她不慌不忙地加入20ml、5%的Na4P2O7和7ml、浓度1M的HCI溶液，又用表玻琅盖好锥形瓶，置于暗处3~5分钟。

Then, Mu Zian immediately titrated with sodium thiosulfate solution until the solution turned light yellow, and then added 10 drops of 1% starch solution.Continue to titrate until the color of the floating substance disappears.

In a blink of an eye, the second experiment was over.

She played well halfway and scored seven points.However, because he did not complete the additional requirements, he deducted one point and got six points.But Langri is still strong, and he scored eight points for his steady performance.

Now, the score is 11:20.

The author has something to say:

In the last chapter, the wolf is going to sleep, okay? [(--)] zzz