The Chemistry Room is located on the third floor of the Chemistry Building, which is located in the northwest corner of Nanshan Middle School. This place is planted with a large number of ginkgo trees, and when autumn comes, the golden ginkgo leaves will fall with the wind, and the scene is so romantic and beautiful that it has been praised by teachers and students as one of the 'Ten Scenes' of Nanshan Middle School.

Of course, what makes the teachers and students of Nanshan Middle School the most proud is not the scenery of the real building, but its hardware facilities!

In the building, there are not only chemistry rooms, but also biology, physics and other disciplines. And the hardware equipment in each real room is first-class in China. Not to mention that compared with other middle schools, even the real rooms of some universities can't catch up with Nanshan Middle School!

With a strong faculty and first-class hardware equipment, Nanshan Middle School will achieve remarkable results in various competitions for middle school students every year! Not to mention in the province, even in the whole country, it is a famous name!

Because of the distance, the students had to trot to the Shiyàn building in the northwest corner of the school. By the time they walked into the chemistry room, the class bell rang.

The area of the chemistry room is much larger than that of an ordinary classroom, and dozens of real tables are neatly placed inside. On each table, there are all kinds of real equipment such as test tubes, beakers, and alcohol lamps, as well as various chemical products such as sulfuric acid, hydrochloric acid, and potassium permanganate that are packed in the utensils and labeled.

The real yàn table is much larger than the normal desk, and according to the regulations, four students should sit next to a real yàn table. In the previous chemistry class, Li Sichen, Zeng Yi, Lin Siyu, and Tan Xiaoxiao happened to be arranged at the same real table.

Li Sichen and Zeng Yi walked into the chemistry room first and sat down at the table. And Lin Siyu and Tan Xiaoxiao came in one step late.

When he saw the vacant seat next to Li Sichen, Lin Siyu was stunned for a moment, and then recalled that he should be sitting next to Li Sichen. As a result, her expression instantly became strange.

After hesitating and thinking for a moment, she said to her best friend: "Xiaoxiao, let's change the position, and you will sit next to Li Sichen in the chemistry class from today onwards." ”

"Why?" Tan Xiaoxiao looked confused and asked curiously, "Siyu, what's wrong with you today?" Since you came to school early in the morning, you have been very strange...... Hey, I said, you can't have any conflict with this kid, are you? Did he bully you? Tell my sister and let her help you teach him a lesson!"

Lin Siyu was afraid that Tan Xiaoxiao would impulsively go to Li Sichen for trouble, so he hurriedly reached out and grabbed her, shook his head vigorously and said, "It's okay, he didn't bully me, and there is no contradiction between the two of us, so don't guess." I was just...... I just don't want to get too close to him. ”

"If there is no contradiction, how can you think of alienating him? Tan Xiaoxiao asked, the soul of gossip was burning at this time.

"It's really fine. Lin Siyu was really embarrassed to tell what happened last night.

"Okay, if you don't say it, I won't change seats with you. Tan Xiaoxiao shrugged, threw down such a sentence, and walked quickly to the seat that should have belonged to him and sat down.

After hesitating for a moment, Lin Siyu could only sit next to Li Sichen, but he didn't communicate with Li Sichen, and at the same time put on a straight face, putting on a cold expression that rejected people thousands of miles away.

Ren Yilong, the chemistry teacher, almost walked into the real yàn room with the class bell ringing.

Grabbing a piece of chalk from the podium, he wrote on the blackboard the words 'dilute concentrated sulfuric acid.' Below is a list of graduated cylinders, beakers, glass rods, as well as distilled water and concentrated sulphuric acid.

After putting down the chalk, Ren Yilong said: "What we want to do today is to dilute the concentrated sulfuric acid. Let's see if the equipment and medicines on the table are complete, and if they are not complete, they will report and come over to get all the medicines. ”

Everyone immediately began to check whether the equipment and potions were sufficient on the real table, while at the same time, Ren Yilong explained the steps of this real yàn and the matters that need to be paid attention to on the podium.

After about ten minutes of narration and preparation, Ren Yilong waved his hand and said, "Okay, let's start the actual operation." ”

The students in the third class of high school immediately got busy.

To be honest, most students prefer hands-on practical knowledge rather than boring theoretical knowledge.

At this moment, everyone is following Ren Yilong's teachings, using a graduated cylinder to take concentrated sulfuric acid, and then slowly pouring it into a beaker filled with distilled water and stirring it with a glass rod.

Except for Li Sichen.

He felt that this reality was completely too simple, and he couldn't arouse interest at all. He simply took out a copy of "The Mirror of the Eight Houses" and read it to himself. Fortunately, their real table is far away from the podium. Otherwise, let Ren Yilong see this scene, I really don't know what he will be angry about.

In addition to Li Sichen, the other three people at this real table are all doing real yàn.

Unlike Zeng Yi and Tan Xiaoxiao's seriousness, Lin Siyu was a little absent-minded when he was doing real things.

Sitting next to Li Sichen, her heart began to think crankily. For a while, she was thinking about the coquettish gasps and conversations she overheard at her sister Lin Duxue's door last night. For another moment, she thought of the scene when Li Sichen was treating her ankle in the school infirmary......

Suddenly, Li Sichen's reminder sounded in Lin Siyu's ears: "Be careful!"

"Huh?" Lin Siyu was stunned, but the movements of her hands did not stop, and her right hand, which was holding the glass rod for stirring, touched the mouth of the graduated cylinder containing concentrated sulfuric acid because of her distraction and negligence, and was immediately contaminated with a few drops of concentrated sulfuric acid.

A burning stinging pain immediately appeared on the back of his hand, and Lin Siyu, who was in pain, immediately cried out: "Ahhh

However, before she could react, the graduated cylinder with concentrated sulfuric acid in her left hand was snatched away by Li Sichen and placed on the real table. Immediately afterwards, her right hand, which was contaminated with concentrated sulfuric acid, was also grabbed by Li Sichen and dragged to the pool next to the real table.

Li Sichen grabbed Lin Siyu's hand with one hand, unscrewed the faucet with the other, and let the water wash on the back of Lin Siyu's hand, and then took the sodium bicarbonate solution to wash, and finally washed it again.

Water is able to dilute concentrated sulfuric acid, while sodium bicarbonate is alkaline and can neutralize acidity and reduce corrosion.

After such a toss, Lin Siyu felt that his hands were suddenly much more comfortable.

Looking at Li Sichen, she opened her mouth, and finally held back a sentence: "Why do you care about me, why do you want to be nice to me?"

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