Meet the principal

Teacher Claire's idea was actually very simple. She originally wanted the aristocratic principal to strip naked and run around the square ten times, but considering that the school was full of pure girls, she couldn't pollute their hearts with that kind of filthy scene. He had no choice but to give up and choose such a special punishment plan.

Reiner doesn't want to become the world's first cross-dressing boss, but fortunately, judging from the information he has received so far, he should not be punished. On the contrary, he wants to tease this stubborn young teacher a little bit.

"I accept this proposal, but Teacher Claire, what if Charlotte is right? How are you going to compensate this student?"

Hearing Reiner's words, Teacher Claire frowned slightly. She didn't think she would lose. As she said, most of the alchemical achievements in the past three hundred years are based on the theory of fire element combustion. This is modern alchemy. Cornerstone.

"what do you want to do?"

Teacher Claire stared at Reiner as if she were looking at something disgusting, as if she had thought of something bad.

"It's simple. In exchange, you have to wear a maid outfit for a week."

Through his memory, Reiner knew that of course there were maids in this world, and they were pure maids. He actually did not want to embarrass Teacher Claire, but he should give her a taste of the pain, so he came up with this slightly evil idea. requirements.

"Maid outfit?"

Men of this era have obviously not yet awakened to that strange hobby. Teacher Claire cannot understand the original intention of Reiner's request, but since it is a maid costume, does it mean that Reiner wants to serve him like a maid?

I don't know what strange thing came to mind. Teacher Claire felt a little embarrassed and wanted to refuse, but then she thought about how she could lose, so she nodded and agreed readily.

"Okay, let's use an experiment to see whose statement is correct."

The three of them came to a vacant alchemy classroom. Due to the limited school funds, there were not many alchemy courses left, so these classrooms were often used for other purposes.

Reiner was a little surprised. The alchemy equipment of this era already had the style of a modern chemical laboratory. Both alcohol lamps and flasks and beakers had become standard, as well as many special-purpose experimental equipment.

The experiment is very simple. Calcium carbonate is heated and decomposes into calcium oxide and carbon dioxide. This formula is very familiar to Reiner. This chemical formula can be found in any edition of junior high school chemistry books on earth.

Since carbon dioxide is soluble in water and has a greater specific gravity than air, it can only be collected using the upward air exhaust method. Reiner assembled the relevant instruments. The somewhat redundant equipment made Teacher Claire frown, thinking that he was just making a fool of himself. .

After weighing the masses of several pieces of limestone, Reiner first pulled a conduit out of the sealed container containing the limestone and passed it into the bottom of a sealed flask, and then inserted another conduit into the upper part of the flask. , extend it into the pool to verify that gas is indeed produced during the heating process.

Ignite the flame. Since the commonly used alcohol lamp cannot stably heat the limestone to the temperature required for the reaction, Xia Luo assists in casting a preliminary fire spell. This is where Reiner saw the magic with his own eyes. The blazing flame danced in Xia Luo. Luo's fingertips did not burn her skin at all, and the way they changed according to Xia Luo's thoughts was really impressive.

"This heating will only cause some air to expand due to heat, causing bubbles to appear in the tube. You are wasting your efforts..."

Before Teacher Claire could finish speaking, she saw a bubble popping out of the tube extending into the pool.

But this was just the beginning. Soon, continuous bubbles appeared from the tube. This was undoubtedly due to the new gas produced in the experimental device.

"this......"

Teacher Claire was speechless;

She stared at the experimental device as if it were some kind of magic prop.

Three times in a row, Reiner and Charlotte repeated this and produced three bottles of gas.

Of course, Reiner did not throw away the calcined white rock, that is, calcium oxide. He threw it into a beaker filled with water. The white stone immediately made a sizzling sound, emitted white smoke, and quickly dissolved. In the water, there is no trace.

Calcium oxide reacts with water to form a calcium hydroxide solution. In chemistry, one of the biggest uses of this solution is to detect carbon dioxide.

Of course, the reason why Reiner prepared this solution was to verify whether his knowledge of chemistry is consistent with the alchemy knowledge of this world. There is no doubt that the two are the same, although Reiner cannot yet explain what the so-called magic is. What, but at least he confirmed that the foundation of this world is no different from Earth.

"It can be clearly seen that gas was produced during the experiment, right, Teacher Claire?"

Reiner asked, observing the young dean's expression with interest and finding it very interesting.

Teacher Claire was silent, thinking constantly in her mind.

According to Master Hohenheim's theory, during the burning process, the fire element in the object is released into flames, and the remainder is ashes. However, the existence of gas is never mentioned. The mass reduced during the burning process is usually It is considered to be the mass of the fire element, but now it seems that this gas also has a share? Or, is this the nature of the fire element?

Seeing Teacher Claire's silent expression, Reiner lit another match and inserted it into the mouth of one of the flasks. He could see that the originally strong flame was extinguished in an instant. It was obvious that the air was not a fire element. , but some kind of gas that can prevent combustion.

Teacher Claire was completely speechless.

Reiner did not stop there. He poured one of the bottles of gas into the liquid in which the white rock was dissolved. He saw that the water level in the flask continued to rise. At the same time, the originally clear solution also became turbid, and a grayish color seemed to appear. Precipitated material.

Now even Xia Luo feels a little strange. Her own experiment ended just now, and the remaining part looks like it was improvised by the principal himself?

Reiner weighed the mass of the turbid solution and the experimental device, and then subtracted the mass of the separate device and the mass of the water. The obtained data was compared with the mass of the limestone before the experiment. It was obvious that the error in the experimental measurement was eliminated. The two are almost identical.

"This means that before and after the experiment, the mass of the limestone dispersed into the mass of the gas and the mass of the white rock, rather than the mass of the fire element and ash in the fire element combustion theory."

Reiner concluded that he knew very well that the theory behind this experimental phenomenon is the most common and important basic law of nature, and is one of the cornerstones of the progress of civilization on earth. Although he does not know much about the development of this world, Reiner Na also believes that this law will play a crucial role in future development.

First of all, this series of experimental phenomena had a huge impact on Teacher Claire. She felt dizzy, her vision went dark, and she fainted.