The next day, Zhang Xiaoyu woke up early, because today, he has a lot of things to be busy with.

Today is Thursday, and he has to go to the experimental class all morning, and he didn't write an experimental report last night, and he didn't have a preview of the experiment to be done today, so he can be said to know nothing, so he has to get up in the morning and hold the Buddha's feet temporarily, otherwise, he will go to the laboratory stupidly, and he won't do anything, and he will definitely be scolded to death by the teacher.

After previewing the whole experiment and writing the experiment report, the time was already eight o'clock, Zhang Xiaoyu packed up his things, went out of the dormitory, went to the canteen for breakfast, and then rushed to the laboratory.

Today's experiment, need to use a large amount of concentrated sulfuric acid, the danger of the experiment is relatively large, if you don't do it well, it will explode, so, the teacher for today's experiment, very strict, where to pay attention to, which amount of substances to control, which period of experimental time to do well, all emphasize repeatedly, this experimental class began at half past eight, and when he finished speaking, the time was already half past nine, and he spoke for an hour.

"Okay, what should be emphasized, I have emphasized it, finally, I will say again, pay attention to safety, everyone must be careful, be careful, be careful, be careful, so be it, students start experimenting." After the teacher said this, everyone went to do the experiment.

This experiment is a one-person experiment, which means that each person is asked to make a product independently.

In the past, every time he did an experiment alone, Zhang Xiaoyu would complain bitterly, because he was always the last person to make a product, and during the experiment, there would be various mistakes, and almost every time he would be nagged by the teacher.

However, this time Zhang Xiaoyu was full of confidence, in the morning, he had memorized the entire experimental process, and followed the steps in the textbook in his mind, and he firmly believed that this time, he would never make any mistakes again.

In this experiment, concentrated sulfuric acid and benzene ring organic matter were added to the flask, and then a water bath was reacted at 40 degrees for 20 minutes, and then toluene was added.

Zhang Xiaoyu measured the toluene with a small beaker, put it on the table, and then let the concentrated sulfuric acid react with the benzene ring organic matter in a water bath, during the reaction, Zhang Xiaoyu went to a toilet, and when he came back, he added toluene, but as soon as he fell, he found that something was wrong, the temperature of the flask was increasing rapidly, and after a while, Zhang Xiaoyu felt hot!

Zhang Xiaoyu couldn't help but be shocked, where was toluene and water when he added it to the flask!

If water is added to concentrated sulfuric acid, it will heat up a lot, and in severe cases, it will cause the flask to explode!

After Zhang Xiaoyu saw this situation, he hurriedly got the round-bottomed flask into the waste tank, and then turned on the faucet to flush the water to cool down, but as soon as he turned on the faucet, the flask "broke", cracked, and splashed the concentrated sulfuric acid in his hand.

When the whole class heard the explosion, they immediately gathered around to see what was going on.

Zhang Xiaoyu endured the pain, quickly wiped off the concentrated sulfuric acid on his hands with a dry cloth, and then quickly rinsed it with water.

"Jiao, who replaced the toluene in my beaker with water, damn it, let me catch it, I have to kill him!" Zhang Xiaoyu scolded, and then said to Zhou Lin: "Zhou Lin, help me go to the sample room and get some sodium bicarbonate." ”

Zhou Lin saw that the skin of Zhang Xiaoyu's entire right hand was burned red, knowing that this matter was serious, he was so frightened that he was stunned, and after listening to Zhang Xiaoyu's words, he said "oh" and said: "I'll go get it!" Then he hurriedly turned around and went to get sodium bicarbonate.

There was a lot of discussion among the people present, and some people began to say cool things.

Li Yiyi sneered and said, "Zhang Xiaoyu, every time you experiment, you will make a mistake in this and that, you are sure that the water in the small beaker is not the water you poured yourself?" ”

Many people began to echo Li Yiyi, and they all said cool things to Zhang Xiaoyu.

"That's it, Zhang Xiaoyu, did you make a mistake yourself?"

"You can't wronged others."

"Who's going to touch your beaker?"

“……”

Zhang Xiaoyu sneered, and remembered in his heart those who said cool things about himself, but he didn't say anything.

That's when the teacher came.

"Zhang Xiaoyu, what's going on? Messed up the experiment again? The teacher came over with a black face.

Zhang Xiaoyu smiled bitterly and said, "Teacher, I'm sorry, but I actually ......"

"Alright, alright!" The teacher looked impatient and interrupted Zhang Xiaoyu's words, "Hurry up and deal with your hands, you don't have to do today's experiment, of course, I can only give you a D for today's experiment." ”

Zhang Xiaoyu sighed helplessly, now that his hand was injured, it was indeed impossible to continue this experiment, so he said, "Okay, teacher, I'm sorry for you." ”

The teacher sighed and said, "Hey, Xiaoyu, how can I say hello, I told you a long time ago, before doing the experiment, you must preview well, why don't you listen, forget it, hurry up and deal with it, rinse it with water, apply it with sodium bicarbonate, and then go to the school hospital to get some anti-inflammatory ointment to apply." ”

"Well, thank you for your concern, I've already asked Zhou Lin to get sodium bicarbonate."

At this time, Zhou Lin came back with sodium bicarbonate.

Zhang Xiaoyu applied sodium bicarbonate to his hands, then packed his schoolbag and left the laboratory.

This experimental class is really depressing, but it's okay, Zhang Xiaoyu can leave early, and the extra time can be used to do something else.

Zhang Xiaoyu did not go to the school hospital, but went directly back to the dormitory.

Back in the dormitory, he used his special skill of "self-healing" to restore his hand to its original state without any scars.

Immediately, he sent a text message to Li Yiyi.

"Li Yiyi, let's see."

Li Yiyi quickly replied to his text message, saying, "What did you say? I don't even know what you're talking about? ”

Zhang Xiaoyu looked at this text message and sneered, this Li Yiyi is really good at pretending, what did she do, she still doesn't know?

Fortunately, Zhang Xiaoyu found out early just now, if the round-bottomed flask exploded on the table, it was likely to splash Zhang Xiaoyu's face, and it might also hurt the innocent people next to him, and the one who was doing the experiment next to Zhang Xiaoyu was Li Yiyi's roommate An Xiaoran.

I didn't expect Li Yiyi to use such a vicious method to retaliate, and she didn't even care about the safety of her best friend, as the saying goes, the most poisonous woman's heart is Li Yiyi's kind of person!

However, Zhang Xiaoyu did not immediately choose to return the color, a character like Li Yiyi, one day, he Zhang Xiaoyu will grab the horse's feet and then step on his feet.

Now, Zhang Xiaoyu has more important things to do, and he has no time to pay attention to such a small role. He bandaged his hands and went out.

He wrapped a bandage around his hand, not because the skin on his hand that was burned by concentrated sulfuric acid was not yet good, but just to hide people's eyes, after all, the injury was so serious, it was healed in a blink of an eye, if he was seen by his classmates, he would not be seen as a monster by them?

Soon, Zhang Xiaoyu left school and came to the city center of S City.

Now, he was looking for someone, and that person was called Lin Long.

……