Chemical knowledge involved in ancient poetry

The deep mountain was dug out by hammer, and calcium carbonate was decomposed.

When the fire started, it was idle. ——CaCO3====CaO

I'm not afraid of being smashed to pieces. -Cao+H2O = = Ca (OH) 2

Leave your innocence in the world. ——Ca(OH)2+CO2===CaCO3↓+H2O

Du Fu's guest followers:

The guests came from there, but I left my spring guest beads. There are words hidden in the beads, so you can't tell a book apart. In order to meet the needs of the public, I kept silent for a long time. Open your eyes and turn into blood, mourning for the absence of this sign.

According to this poem, a guest from the south gave the poet a pearl with a pattern on it. The poet kept it in a box. After a long time, he opened the box and found it. The pearl disappeared, leaving only some red liquid. Pearl is formed by agglutination of secretions produced by stimulation of the mantle of pearl oyster. Its main components are calcium carbonate and a small amount of inorganic substances. Du Fu's bedroom was wet by rain, and the bamboo box was wet, which reacted with water and carbon dioxide: CaCO3+H2O+CO2==Ca(HCO3)2, and became a red liquid.

Du Mu's farewell:

Affectionate is always ruthless, but you can't laugh until you feel it. The candle on the table lit the heart, and it also saw the parting; You see, it shed tears for us and flowed to the morning.

The composition of candles is paraffin wax, which belongs to solid hydrocarbons and has a low melting point. It can burn in the air, and the reaction releases heat to melt the candle.

2. The complete works of ancient poetry.

1. Is Bai Juyi's Sauvignon Blanc a title or a epigraph? 2. Who is the author of "Spring silkworms are spinning until they die, and candles are crying dry every night"? 3. What kind of words are composed of "the cock crows in Maodian, and the frost in Banqiao"? 4. Who were the immortals and saints in the Tang Dynasty? 5. What is the last sentence of "after three months of war"? 6. Who is the author of Luo Shenfu? 7. How many "Li Bai's Dream" did Du Fu write? 8. Who are the representatives of the wild school of Song Ci? 9. Who are the representatives of the graceful school of Song Ci? 10. Who does Miracle call his "word teacher"? Attached answer 1. Episode name 2. Li shangyin 3. Noun 4. Li Bai and Du Fu. A letter from home is worth a ton of gold. Cao Zhi 7. Two songs. Su Shi and Xin Qiji. Liu Yong 10. Zheng Gu.

3. Ancient poems about chemistry

Limestone hymn

Thousands of hammers come from deep mountains,

The fire is still indifferent.

I'm not afraid of all the pieces,

Leave innocence in the world. Chemistry and Ancient Poetry 2007-09-04 09:56 I. Chemical knowledge in ancient poetry 1. Ancient poetry is a precious spiritual wealth left by the ancients. The following verses only involve physical changes: () A, wildfires never completely consume them, and they grow taller in the spring breeze. In spring, silkworms will be woven to death, and candles will drain the wick C every night. As long as you work hard, the iron pestle will be ground into needles D, and at the age of one, they will be separated by firecrackers. The spring breeze will warm Tu Su. Analysis: This question combines ancient poetry to investigate the change of matter, and the question type is novel. Careful analysis of the meaning of the question shows that A involves burning vegetation, B involves burning candles, and D involves setting off fireworks and firecrackers, all of which have new substances and are all chemical changes. Only C changes the shape of matter, and no new matter is produced. This is a physical change. Answer: c example 2. In the long history of China, ancient poems are like bright pearls, which are valuable spiritual wealth. Please point out the word "smoke" in the following poems, which is in line with reality: (1) the desert is lonely and straight, and the long river sets the yen; (2) the warm distant village, the smoke from the kitchen in Yiyi market. C. Four hundred and eighty halls in southern dynasties, with many towers and misty rain. D fireworks, cold water, moonlit sand, night parking near Qinhuai restaurant. Analysis: This topic examines the difference between "smoke" and "fog" in chemistry with ancient poems. In daily life, "smoke" and "fog" are often confused. In fact, small solid particles floating in the air are called smoke, while small droplets dispersed in the air are called fog. Smoke, cooking smoke and flying dust are all worthy of the name, and the phenomenon seen when white phosphorus burns is to produce thick white smoke. The fog in the morning and the white gas from the kettle after boiling are all the functions of fog. When the cork of concentrated hydrochloric acid and concentrated nitric acid is opened, white fog will be produced. The "smoke" in option A is formed by sand rolling up with the wind, the "smoke" in option B is kitchen smoke, and the "smoke" in options C and D is rain fog. Answer: a and b cases 3. Yu Qian, a national hero in the Ming Dynasty, wrote a poem "Ode to Lime": "If you hit a thousand times in the mountains, you will burn at leisure, and if you are not afraid of being smashed to pieces, you will leave your innocence in the world." The substances described in these four poems are () A. limestone, hydrated lime, quicklime, calcium carbonate B. limestone, quicklime, hydrated lime, calcium carbonate C. calcium carbonate, calcium carbonate. There are three reactions described in Ode to Lime: (1)CaCO3= high temperature Cao+CO2 ↑ (2) Cao+H2O = Ca (OH) 2 (3) Ca (OH) 2+CO2 = CaCO3 ↓+H2O. In order to determine the order of each substance, we must be familiar with the properties of calcium carbonate. Answer: B. Example 4. The idiom "turning stone into gold" originally meant the spell of ancient alchemists, that is, turning stone into gold; Now metaphor can turn decay into magic. Some people say that he can turn limestone into gold. Please use your chemical knowledge to explain why limestone can't be turned into gold. Analysis: This topic skillfully uses idioms to investigate the nature of chemical reactions. Elements are the general names of the same kind of atoms with the same nuclear charge number, and atoms are the smallest particles in chemical changes. In chemical reactions, molecules can be divided into atoms, but atoms cannot be divided. In other words, the process of chemical reaction is only the process of recombination of atoms that make up matter. Before and after chemical changes, the types of elements remain unchanged. A: According to the law of conservation of mass, the types of elements remain unchanged before and after chemical reaction. The main component of limestone is calcium carbonate, which is composed of calcium, carbon and oxygen, and gold is composed of gold. Therefore, limestone cannot be turned into gold. The following two idioms are related to the chemistry we have learned. Please choose one and briefly describe the chemical principle. A. A hundred-tempered steel (pig iron that is repeatedly burned red is hammered in the air and converted into steel. (Kettle: refers to ancient cooking utensils, equivalent to the current pot; The idiom you choose is _ _ _ _. Principles of chemistry: _ _ _ _ _ _. Analysis: This topic uses idioms to investigate the smelting principle, combustion conditions and fire extinguishing principle of steel. The difference between pig iron and steel lies in the carbon content. In the process of hammering red-hot pig iron in the air, carbon reacts with oxygen in the air and is converted into carbon dioxide gas to escape, thus achieving the purpose of reducing carbon content and turning pig iron into steel. B one of the combustion conditions is combustible, and the reduction of combustible is not conducive to combustion, and less heat is released. Answer: If you choose A, the principle is that when red-hot pig iron is hammered, the carbon in pig iron reacts with oxygen in the air to release carbon dioxide, which reduces the carbon content and transforms it into steel. If you choose B, the principle is that one of the combustion conditions is combustible, and the reduction of combustible is not conducive to combustion. 3. Chemical knowledge in advertising words Example 6. The advertising slogan "A diamond is eternal, an eternity" was rated as one of the classic advertisements in the 20th century by the United States (advertising era). The nature of the diamond that this advertising word can embody is () A. Hardness B. Non-conductivity C. Chemical stability D. Low melting point analysis: This topic skillfully describes the chemical properties of the diamond with advertising words. "Diamonds last forever, and one lasts forever", indicating that diamonds can be preserved for a long time and remain gorgeous without deterioration. Diamonds are diamonds, the main component of which is carbon, which is chemically stable at room temperature and difficult to react with other substances. Answer: c