Not only Zhang Changshun and his wife boasted, but the members of the chemistry Olympiad training team of Qiaozhou No. 1 Middle School, including teacher Liu Yanqiu, were also boasting about Qu Guangquan.

- Qu Guangquan is too good.

Experiments are an important part of the Chemistry Olympiad, with a considerable proportion of experimental questions in the preliminary round and experimental operations in the finals, with a score of 3:2.

The questions in chemistry experiments require comprehensive knowledge, complex factors, and rich practical experience.

The students who can participate in the training team are all relatively solid in the basic knowledge of chemistry, and if they only test the dead knowledge, they will not be able to close the distance at all. To stand out in the competition, chemistry experiments are definitely the key to Guan Jianzhong.

Because the chemistry experiment topic is the most difficult point.

are all masters, who wouldn't know dead knowledge?

That's why Liu Yanqiu asked Qu Guangquan to participate in chemical experiments even if he couldn't participate in the closed training camp normally.

At that time, the high school chemistry experiment, as an economically very underdeveloped Qiaozhou City, even the best Qiaozhou No. 1 Middle School was just a teacher with experimental equipment and a demonstration in the classroom, and the students wanted to think of the laboratory to do experiments, sorry, the laboratory was not open to students.

It was for inspection by superiors. The budget is too tight, there are all kinds of waste to be rebuilt, and there are places to spend money everywhere!

In order to live up to the strong support of the Education Bureau, the principal specially approved the funds for chemical experiments, and teacher Liu Yanqiu finally opened the laboratory and let the members of the training team conduct chemical experiments.

"Students, extraction and purification are very important experiments in high school chemistry learning, and we will start our Olympiad experiment today by using the extraction method to separate iodine from iodine water. ”

Liu Yanqiu first operated on the experimental table, and then a team of 4 people began to do extraction experiments.

Although everyone has learned it in class, and the exams can be answered correctly, it is not so easy to get started.

When pouring into the separating funnel, there will also be a phenomenon of running and dripping, especially the groove (or small hole) on the plug is aligned with the small hole on the funnel, and then the piston under the separating funnel is unscrewed, so that the lower liquid slowly flows down the beaker wall, watching the teacher do it, it is very simple, but it really takes some effort to make the solution flow down the cup wall.

Qu Guangquan and Chen Yao and the other four people were divided into a group, Chen Yao and the two classmates were full of interest, but there were always mistakes, Qu Guangquan was silent, and silently fought for them.

Qu Guangquan was very interested in such a simple experiment, so he came to participate in the experiment, on the one hand, hoping to find the feeling of returning to the laboratory, and on the other hand, he was also very curious about what kind of laboratory he had not been in in high school.

However, the moment Liu Yanqiu excitedly opened the laboratory, Qu Guangquan was disappointed!

It's too backward, it's too primitive!

Not only is the experimental equipment shoddy, but the experimental preparations are also of low quality.

40 minutes later, Chen Yao and the three of them completed this simple experiment independently with great interest, and the careful Chen Yao found that Qu Guangquan had been working hard and had never rushed to do the experiment with the three of them.

"Qu Guangquan, I'm sorry, come on, come on, it's your turn!"

However, before the words fell, Liu Yanqiu's high-five rang out: "Students, stop, stop, let's be short on time, let's start the second experiment, operating the extraction of bromine." ”

Many students were anxious: "Teacher Liu, can you wait a little longer, I haven't finished it yet!"

"Yes, I'm one step away!"

"I'm going to wrap it up—"

Liu Yanqiu raised her hand and looked at her watch, "Oh, no, it's five o'clock now, and I still have urgent matters at home!" I originally thought that you could complete the first experiment in 20 minutes at most, but it was almost 40 minutes. At this rate, it will take at least an hour for the bromine extraction experiment to be completed! I can't wait that long!"

Chemistry experiments are dangerous and must be carried out under the supervision of the teacher!

"What then? I really haven't done it—"

"Mr. Liu, please—"

Someone was knocking on the door of the "Bangbang, Bangbang" laboratory, Liu Yanqiu opened the door, and a voice came: "Teacher Liu, your lover called and said that your mother's operation time was advanced, so let you hurry up and go back." ”

Seeing that Liu Yanqiu was as anxious as the ants on the hot pot turned in circles, Qu Guangquan couldn't bear it, so he raised his hand: "Teacher Liu, you go home, I'll take everyone to do the bromine extraction experiment!"

Liu Yanqiu shook her ears, "What did you say?"

"I said, I'll take you to do an experiment on bromine extraction. Qu Guangquan walked over from the experimental table.

"Qu Guangquan!" Chen Yao knew that Qu Guangquan was a warm-hearted person, but doing experiments was not a reckless thing, "You haven't even done iodine extraction experiments, you don't know that saying it is different from doing it, if you want to say it, everyone will say it, but once you do it, you can't do it." ”

Liu Yanqiu still has a lot of trust in Qu Guangquan's chemical talent, and the moment Qu Guangquan stood up to share the pressure for himself, he also imagined that Qu Guangquan should be able to do it, and Chen Yao's reminder immediately followed suit.

"Teacher Liu, since I said it, I can naturally do it!" Qu Guangquan smiled, "Teacher Liu, I'll go to the podium to operate it first, let's take a look." ”

The moment Qu Guangquan used a measuring cup to take water and put it into the separating funnel to check whether the separating funnel was leaking, Liu Yanqiu's impatient heart calmed down suddenly.

Too skilled!

It's so professional!

"Qu Guangquan, do you really know?" Liu Yanqiu still couldn't believe her eyes.

"You can rest assured!" Qu Guangquan followed the steps step by step, and Liu Yanqiu was shocked!

Compared with Qu Guangquan's operation, Liu Yanqiu realized that when she was originally operating, there was a small detail that was inaccurate, and Qu Guangquan actually did better than herself!

"Qu Guangquan, how did you do that?" Liu Yanqiu couldn't help but ask.

"Look at the books, these books are written!" Qu Guangquan opened his eyes and said nonsense, but who could believe the truth?

"Qu Guangquan, you are so good!" Liu Yanqiu admired from the bottom of her heart.

"Teacher Liu, you can go home with confidence. The health of your family is the most important thing. ”

"Well, thank you, Qu Guangquan, I'll hand over the laboratory to you. Liu Yanqiu smiled and hugged Qu Guangquan: "I finally have confidence in this year's training team! You are my sweetheart!"

Qu Guangquan didn't expect that the female teacher would also be coquettish, and his face turned red in the laughter of his classmates.

The chemistry Olympiad team of Qiaozhou No. 1 Middle School was directly burdened by the Education Bureau, and it was wiped out last year, which was too much pressure!

"Chen Yao is so envious of your group!"

"Chen Yao is so blessed, he is actually in a group with Qu Guangquan!"

As soon as Liu Yanqiu left, Chen Yao's group immediately became the object of envy of everyone.

Chen Yao's elephant eyes glanced at Qu Guangquan, "Hmph, Minister Chen of the Propaganda Department has already agreed to publicize that Qu factory director, I didn't help you in vain!"