Huang Tongzi glanced at the crookedly drawn chemical equations on the ground, and took a step away to try it off with his foot.

"Stop!"

Taishang Laojun waved his hand, took a step forward, looked at the ghost drawing talisman on the ground, Lao Jun was stunned for a moment, and scolded: "Good apprentice, you are very elegant, let you take good care of the alchemy furnace, you are good, don't do your job here to draw ghost painting talismans to play!

"Master, master, your Jindan's refining formula is as perfect as a textbook, how can it be refined? Also, the melting point of gold is much higher than that of iron, so it is easy to melt!" Huang Tongzi looked flattering, "The apprentice was studying just now, it's not some ghost drawing." ”

"Are you learning to draw ghosts and draw talismans? Do you want to change your career? Go back to the mortal world to catch ghosts?" Taishang Laojun scolded with a smile, and with a wave of his white sleeves as he spoke, the samadhi true fire in the gossip furnace burned even more vigorously. The fire was in place, and a faint medicinal fragrance wafted out of the alchemy furnace. The fragrance is not as mellow as ordinary pills, and the faint aroma of medicine hovers around the alchemy room, faintly resisting people, and it is very aura.

Huang Tongzi took advantage of the fact that the medicinal fragrance spirit had not yet given birth to spiritual wisdom, and suddenly inhaled it and swallowed it all into his stomach, "Master, this is not some ghost drawing talisman, this is the chemical formula of iron." This element reacts with carbon monoxide to form pure iron and carbon dioxide. Oh, I figured it out, this carbon and carbon dioxide reaction gives you carbon monoxide. There are other invisible and intangible oxygen, hydrogen, etc., which are scattered in the air and require special means to extract ......"

It's a blur.

"It's just nonsense! Who did you listen to, heaven and earth are all-encompassing, and all things are based on spirits! What kind of oxygen mess is there! Who taught you what you made up?" Lao Jun reprimanded for a while.

Huang Tongzi was depressed, there are differences in everyone's knowledge. The aura that the master said is not the same as the chemical knowledge he learned!

"Uh...... Master, this is what I learned in the teaching of "University of Literacy" opened by Sansi Shangshen, and I think it makes sense" Huang Tongzi said with a look of grievance: "Not only oxygen, but also hydrogen, sulfur, nitrogen and other gases exist in heaven and earth, which are distributed on the blue earth in different proportions. ”

"What! angry! Eggy!Shoot you to death!" Taishang Laojun scolded angrily.

Xiucai couldn't explain it when he met Bing, Huang Tongzi looked confused, "Master, it's not the egg you think, it's this nitrogen"

"You little bastard! Okay, if you don't learn to be angry, you will play with eggs! The old man knows astronomy and geography, and he knows the evil spirit of hell! Telling right and wrong, pulling things out of nothing, and misleading people's children!" Lao Jun sighed with emotion: "Originally, the old man wanted to go to the live broadcast room to make friends with this god, but I didn't expect him to be so ridiculous, it would be better to stay away from this kind of person, which is boring."

Huang Tongzi's face turned red in a hurry, and he drew the fan in his hand on the ground, and wrote out the words sulfur and nitrogen, "Master, it's not a rogue stream, it's not an egg that hurts, it's this sulfur and this nitrogen." Huang Tongzi neatly wrote this word on the ground.

Lao Jun looked at the two words and was stunned for a long time, and slapped Huang Tongzi's brain, "You are really a good apprentice for the teacher! How does the old man usually teach you, knowing is knowing, not knowing is not knowing, is knowing, and even writing casually to fool the teacher! This written sulfur and nitrogen word, the teacher can clearly tell you, even if you go through the books of the Three Realms, there are no two words!"

Huang Tongzi was stunned for a long time, whether he was a yellow-robed monster in the heavenly realm or even in the human world, after so many years of ups and downs, he just hadn't seen these words. These words were all learned in the chemistry book of the University of Literacy, and after a long silence, Huang Tongzi plucked up the courage to say: "There is no wonder in the world! There is no one who does not know, only those who have not learned! Do you agree with this master?"

"Tell the teacher everything you have learned!" the old man doesn't believe me!" said the old man.

"Nitrogen is a relatively stable volume in the air, followed by oxygen, and the rest is rare gases, which can enter your mouth through your mouth or nose when you breathe......

Lao Jun's old mouth suddenly twitched, and he slapped him on the back of the yellow boy, and Lao Jun was so angry that his front teeth began to tremble, "You rabbit cub want to be angry with me......" The yellow robe monster has behaved very well in Tushi Palace over the years after reforming, Lao Jun loves him very much, and treats him as a personal disciple, otherwise he will be abolished directly with today's situation!

"Master calm your anger, stop your anger! You sit down and explain to you first, and our master and apprentice will say that this is all new knowledge, and you will not be able to understand it for a while, and you will not be able to accept it. Huang Tongzi helped Lao Jun sit down while worrying about Lao Jun's face, "Master, these are not nonsense, they are all summarized through repeated reasoning and experiments by scientists. Please also ask the master to listen to the apprentice to give you one by one, and you will soon know this new knowledge system. ”

Lao Jun almost fainted in anger, and slammed the floor three meters deep, "You say! If you can't figure it out! The old man will throw you into the gossip furnace today to eat ashes!"

Hearing Lao Jun's later words, Huang Tongzi had a bottom in his heart, although Lao Jun was angry, he would not do anything to himself, "Master, let's do an experiment to verify whether what I said is true or false!"

After a pause, Huang Tongzi continued: "These gases are extremely useful in the refining vein, and it is not easy to lift them out of the air with the master's skill. From the discipline of chemistry, there are a lot of talks about the method of material fusion, if you also learn this subject, the alchemy in the future can achieve twice the result with half the effort!"

Speaking of this, Taishang Laojun's old eyes glared, "Chemistry is really so powerful?"

"The chemistry teacher introduced in class that oxygen has the effect of fueling, that is, adding this gas to the combustion process can make the fuel burn more fully. Although this nitrogen does not have the effect of combustion, it can be used as a filling gas in food vacuum packaging, for example, snacks in Jiuzhongtian Food Street can be packaged with this nitrogen to extend the shelf life of food. In addition, this sulfur dioxide is a toxic gas and is harmful to the human body. Huang Tongzi shook his head and said, without any pause in between.

Lao Jun has completely sprouted coins, why did he come out of a poisonous gas? This is the thing that bubbles up from the Three Realms, the underworld or the yang?

"Apprentice, you stop first, don't talk about some useless nonsense, seeing is believing and hearing is false! You first get this oxygen out, let the teacher open his eyes!" Taishang Laojun said.

Hearing the powerful effect of oxygen, if it is really as Huang Tongzi said, using this oxygen into the Bagua Furnace for alchemy, it will really have the effect of getting twice the result with half the effort. But this is a speculation, Taishang Laojun wants to debunk how the University of Blindness misleads people's children.