love you like a song

Big drops of tears flowed into the soil, no one knew how disturbed and sad Mu Zi'an felt when he escaped from death.

She picked up a twig in a fit of anger in the school garden, and slowly wrote down the answers to the questions just now.

Put the gas-filled test tube upside down in the water basin, and find the volume of the liquid in the test tube (the test tube is 1 liter).

In the first pass, if the gas is NO, what is the rise of the liquid level?

Because NO is insoluble in water, 0 liters.

Mu Zi'an took a breath, and quickly answered the question.After all, I have been writing official script for ten years. The handwriting is strong and strong, and it is easy to write beautiful characters. I finished the first question in a short time.

In the second pass, if the gas is NO2....

She recalled the second question in her mind, and then couldn't help frowning.

If the first question type can be regarded as a second-year question of the NO nature, then this second question belongs to the category of high school.But the reason why Mu Zi'an really looked embarrassed was not because it was difficult.

On the contrary, it was because of simplicity that Mu Zi'an hesitated.

For a junior high school student who is new to chemistry, it seems a bit reluctant to do this question.

But Mu Zi'an just hesitated a little, and then continued to write.She thought, at worst, the corpse would be destroyed after writing, and Gu Nan couldn't grab her by the neck and say: You can't write, can you?

Every high school student can do such an easy question, especially Mu Zi'an, who has been a high school chemistry teacher for nearly ten years.

她毫无停顿地挥笔写下：因为3NO2H2O=2HNO3NO，液面上升2/3升。

Now that he decided to destroy the corpses and traces, Mu Zi'an didn't keep it anymore, and started writing the third question directly.If the gas in the third channel is a mixed gas of NO and NO2, then only 2/2 of NO3 will rise, and the fourth channel...

Suddenly, her stomach turned upside down, and the coldness all over her body spread gradually, and cold sweat flowed from her painful forehead.

Mu Zi'an's face turned pale, and his stomach cramped continuously.She desperately pressed her stomach with her hand and bit her lip, but it was futile.

The stomach twitched continuously and hurt, and the contents of the stomach almost rolled out, but she hadn't eaten for three days, and she couldn't vomit anything, so she could only retch uncontrollably.

There were only the last two key questions left. She didn't believe that she couldn't change the situation that she couldn't do it all over again, so she held her breath and exhausted herself.She said silently: It's okay, I'm used to this pain, I must finish writing.

The fourth way... If the original gas is 20ml, the components are NO and O2.The test tube is turned upside down in the water, the liquid level rises, and the remaining gas volume is 6ml. Find the volume occupied by the original mixed gas NO and O2?

慕梓安捏紧树枝，因为4NO3O22H2O=4HNO3，设NO为4x，O2为3x。所以4x3x=20-6，x=2ml，答案分为两部分。

一、若O2剩余，则V（NO）=4X2=8ml，V（O2）=20-8=12ml。

二、若NO剩余，则V（NO）=86=14ml，V（O2）=20-14=6ml。

Same as the fourth question, the fifth question only changes the original gas composition to NO2 and O2...

......

In the classroom, Gu Nan was a little irritable.She has read all the report cards of this class. In fact, it is not a big deal for that child to go to the infirmary. It is just a class.

She originally thought that Mu Zi'an would not be able to write, so she agreed to let her go out, but when Gu Nan raised her head, she could see the little figure squatting among the flowers from the window...

Brazenly skipping class?Under my nose?

Gu Nan endured it, looked outside, looked outside again, finally couldn't help it, put down the book, and announced to the students that he would go out for a while, so that they could continue to work on the questions.

When he came to the garden, he heard the sound of the branches rubbing against the ground. Gu Nan raised his eyebrows when he saw the carefully copied topic.

Good words, good memory...

She seemed impatient with the noise of the branch rubbing against the ground, and whispered.

"You just go back to the classroom with me, no need to copy the questions."

However, the student didn't even raise his head, and continued to scribble and write, making more noise.After writing for so long, isn’t it just copying the questions?

This was the first time a student dumped her face.

Gu Nan smiled, her Liu Ye eyebrows raised slightly, and her tone was accentuated. "If you don't want to learn, go home." Then she stared at the ground under the student and was stunned.

The answering process of the first question, the second question, and the third question was perfect, and the fourth question was a deepening question, but the student still answered perfectly, and his handwriting was extremely mature, skimming the brown soil like flowing water.

It seems that I am not solving problems, but writing silently.

Gu Nan bent down and looked at the fifth question, which she had written most of, with a more complicated expression. It is not difficult to deduce that this question is still perfect.This is simply an insult to her, a teenage junior high school student, so easily solves the problem she made up.

Mu Zi'an stopped suddenly, pinching the branches, his fingers were white, revealing slender blue blood vessels.

"you..."

Puzzled why she suddenly stopped answering the question, Gu Nan looked up and saw a pale face.

"... are you okay?"

The student didn't answer her, he bit his blue lips tightly, and many fine beads of sweat gradually appeared on his head.It's not right to keep your head down.

Gu Nan immediately called an ambulance and helped the student to sit down.

Mu Zi'an bit his lips with blood, his eyes were a little distracted, and his body trembled, as if he was hiding great pain.Then he vomited a few more mouthfuls of blood before he showed a big smile in confusion and hugged her.

The bloody smile, young and unopened, is not very pretty.The whole person is thin and small, with only a skeleton left, but those black eyes are particularly bright and attractive.

Looking at such eyes, Gu Nan shook his head.

She has a slight cleanliness and is not used to being so close to others.The sick person is not very strong, so it is easy for Gu Nan to push this person away, but feeling the wetness on her shoulders, she can't bear to push her away no matter what.

"Mom... Mom"

"Mom...don't leave me"

After hearing what the student cried and shouted, Gu Nan patted her shoulder silently, gently hiding the inexplicable discomfort in his heart.

Little girl, you got the wrong person.

The author has something to say:

Pretending to be aggressive, don’t you want to collect it? o(*￣︶￣*)o