Ask for a chemistry joke, chemistry question, hehe

And can be converted into each other, generated in boiling water, can be oxidized in the air, has the smell of rotten eggs, what are each? The answer goes down.

Answer: It's chicken, it's raw eggs, it's hard-boiled eggs, and of course rotten eggs.

In an office, a colleague A ate too much at noon, and soon after entering the office, he kept farting, like rotten eggs, and a guy B on the side had a lot of opinions, so he explained to him (A) and told him to pay attention. This person (A) was also very obedient, so he did so, and after a long time, B did not notice that A was farting again. But after a while, he noticed that the colleague was shaking in his position, and the chair was rattling one after another.

B was very strange and asked A what was wrong, and A said that I had turned it to vibrate.

Let me tell you one: A graduate student excitedly said to his supervisor: Teacher, I have developed a chemical agent that can corrode everything!

The teacher smiled and said to him, "Then what do you use to put it?"

My dad's name is Chemistry.

There is always soap on the soap I bought when I was a child; Shanghai Chemical Commodity Factory.

I always thought it was my father's"Overseas assets"A lot, but they haven't told me yet.

Your dad and mom got married due to a physical reaction, and then the chemical reaction had you!! Haha, it's not easy to be a child!

Inference: A substance has the smell of rotten eggs and can react with water under heating conditions.

Answer: rotten eggs.

Hahahaha, you upstairs are so humorous.

1 Hu let water molecules.

H2O contains 10 electrons, and God does Qi so.

1molh2o

Contains 10mole-

Piece. The amount of matter of e- is.

1mol。Then the amount of the water's wandering substance is.

The first question is 1mol

Question 2 is selected C, and in the first question, according to the formula n=nna=

NA=12g in question 2

The amount of material collapse of 14c is 12 14=

The atomic number of 14c = 14c

The amount of the noisy shirt royal substance *na, so I choose C

One day the physicist and the chemist went to the restaurant, and the chemist said h2o, and the physicist said h2o, too, and the waiter brought it, and the physicist drank it and died,,, because the waiter heard h2o2

The first: dihydrogen monoxide hoax. Hydrogen monoxide is water, the version that Clegg Jackson first posted on the web about this hoax:

The dangers of dihydrogen monoxide include:

Also known as "hydroxide acid", it is the main component of acid rain;

It has a promoting effect on soil erosion;

It has a driving effect on the greenhouse effect;

It is the cause of corrosion;

Excessive intake may cause various discomforts;

Prolonged contact with its solid form can cause severe tissue damage;

Inhalation can also be fatal in the event of an accident;

When in a gaseous state, it can cause severe burns;

The substance has been found in tumors of patients with incurable cancer;

People who are addicted to this substance will die within 168 hours of leaving it;

Despite this danger, dihydrogen monoxide is often used for:

a wide variety of cruel animal studies;

The U.S. Navy has a secret network of hydrogen monoxide transmission;

Rivers and lakes around the world are polluted with dihydrogen oxide;

often used in conjunction with pesticides; After washing, the agricultural products are still contaminated with this substance;

additives in some "junk foods" and other foods;

Part of a substance known to cause cancer;

However, hydrogen monoxide is still used in large quantities by numerous companies regardless of its extremely dangerous properties.

The second: to test the volume of rubidium.

Say that a Chinese student measures the volume of a piece of metal rubidium. A lot of mathematical formulas have been cited, a lot of data has been measured, and still no results have been obtained. When the American student saw it, he took a beaker and filled it with water, and said that he would throw rubidium into the water and calculate the volume of rubidium by looking at the volume of water discharged.

The Chinese students saw it and ran away.

Conclusion: American Student Union Innovation.

Note: Rubidium metal will meet water**. ）

"Experiment 2" shows that ordinary objects have the properties of thermal expansion and contraction In experiment 2, ice is placed on a copper rod, and the copper rod expands and contracts in heat and cold, and shrinks when it is cold, and the pointer is deflected to the right

When a hot test tube suddenly comes into contact with a cooler wick, the glass of the test tube quickly cools and shrinks, causing it to break.

Test 1 shows that the temperature of the flame of the alcohol lamp rises sequentially from the inside to the outside, that is, the flame of the heart, the inner flame, and the smoke outside.

Experiment 2 shows that the length of the copper rod becomes smaller when ice cubes are placed on it. That's why the pointer is shifted to the right. It is proved that the metal has the property of shrinkage when exposed to cold.

It indicates that the metal will shrink when it is cold.

First of all, the copper rod does not move up and down, and to make the pointer move to the right, the copper rod can only move to the left. Without giving the copper rod an external force, it is tightly cooled by adding ice cubes to make it move to the left, indicating that at low temperatures, the copper rod shrinks.

I love chemistry! But it's no joke. /.