The interesting things in chemistry class

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1. Chemistry teacher: Students, in the eyes of those of us who study chemistry, the world actually looks different... The students were curious. Chemistry teacher: For example, the student in front of me – in my opinion, he’s nothing but a pile of carbohydrates supported by calcium carbonate… The students shudder… 2. “When I first started teaching, I also taught about sodium.” At that time, the students were allowed to work in the laboratory. Who would have thought that one of them would steal a piece of pure sodium and take it away… Well, fine, he stole it, but what’s most despicable is that he actually threw the sodium down the drain…” The others didn’t even realize what was happening. What’s wrong with throwing it down the drain? “As a result, they tried their best in a misguided way and ended up blowing up the toilet…” 3. One day, after drinking alcohol, a chemistry teacher was flushed with pride; at that moment, a student raised his hand to ask a question. Student asks: Which has a greater density, ethanol or water? The master said: It’s easy; just watch me and you’ll understand. One doesn’t know what to do in such a situation. The master said again: Fool, wine is light and rises to the top, while water is heavy and turns into urine! It is clear which is lighter and which is heavier; chemistry should be connected to real life. Sheng suddenly saw the light; he said to his companion, \"He is truly a master of his time.\" 4. During a history class, the teacher asked, “What are Huabiao?” The representative of the chemistry group stood up without raising his hand and quickly replied, “Huabiao is calcium carbonate.” 5. In a chemistry class, the teacher asked, “What would happen if a doctor gave patients barium carbonate by mistake?” ”The representative from the Political Science department replied, “Doctors should be sentenced, and hospital directors should be given disciplinary actions.” 6. Do exercises in the Political Science class: Shenzhou 6 was launched successfully... Question 1: What can we learn from this? A student replied: The Shenzhou 6 uses hydrazine as fuel and hydrogen peroxide as an oxidizer. It results in the production of nitrogen and water, along with the release of a large amount of heat: N2H4 + 2H2O2 = N2↑ + 4H2O. 7. When teaching about halogens, the chemistry teacher said that astatine is the rarest element on Earth. 8. In junior high school, during an experiment on the reactivity of metals, the teacher asked students to share their conclusions; one student said, “Mg and Al are both very reactive, but not all reactive elements are Mg or Al.” 9. The teacher said that stomach acid is highly acidic and can dissolve steel. I said, “Then it will create ‘stomach acid steel’.” The teacher asked what to do if one smells coal gas upon returning home; I replied that it’s necessary to check its purity first. The teacher then asked what the students wanted to eat; I suggested pickled eggs. The teacher asked whether nitric chloride or bromine chloride would be better. 10. One of my classmates wrote “barium carbonate” for barium meal, refused to admit his mistake, and claimed that he had sulfuric acid-based stomach acid. 11. Elements S and Se – guess a famous writer. Answer: Liu Yuxi. 12. One of the topics in junior high school courses is the importance of conserving water resources. Dude asked how to take care of water resources The kids said, “Mop the floor with the water used for washing vegetables.” ” “Flush the toilet with floor-washing water. ” “Wash your feet with face wash. ” “Cooking rice with foot bath liquid…” Old Wet said, “That’s not good.” The student replied softly, “It gives it more flavor. ” 13. A girl who’s already in high school still doesn’t know what allotropes are, so she asked me. The old man said earnestly, “It’s good that you’re a woman; you don’t need to use a diamond ring to propose.” You don’t need to know the serious consequences of proposing with a charcoal ring. ” 14. Teacher Wan is giving a chemistry lab class, explaining how to check the airtightness of equipment. Suddenly, Sheng Yisheng let out a loud fart by accident, and the students couldn’t help but laugh. Teacher Wan got a bit annoyed: \"The device is leaking air – what’s there to laugh about?\" ”The classroom was filled with laughter. Teacher Wan had no choice but to intersperse some chemical knowledge: \"Farts are a type of chemical weapon; it’s impossible for anyone not to fart.\" The one who farts is proud, while the one who smells it is dejected. ”