The template of chemical handwritten newspaper is simple and beautiful.

Chemical handwritten newspaper template

Chemistry in life:

1. Use of iodized salt. Iodine is an essential nutrient for human body, and long-term iodine deficiency will lead to iodine deficiency. Edible iodized salt is the simplest, economical and effective method to eliminate iodine deficiency.

2. Don't cook tofu with spinach. Calcium oxalate is a precipitate that the human body cannot absorb. Spinach, onion and bamboo shoots are rich in oxalic acid and sodium oxalate, and tofu contains more calcium salts, such as calcium sulfate. The above substances can undergo a metathesis reaction to generate calcium oxalate precipitation and other substances.

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3. Aluminum is harmful to human health. Aluminum has always been considered as a non-toxic element, so aluminum drinking utensils, baking powder containing aluminum expansion agent,

Wait a minute. Be widely used. However, recent studies show that aluminum can disturb human metabolism and cause long-term and slow harm to human health, and its toxicity is slow and difficult to detect.

Most in chemistry:

1. The most abundant metal element in the earth's crust is aluminum.

2. Oxygen is the most abundant nonmetallic element in the earth's crust.

The most abundant substance in the air is nitrogen.

The hardest substance in nature is diamond.

5. The simplest organic matter is methane.

6. The most active metal in the metal activity sequence table is potassium.

7. The oxide with the smallest relative molecular mass is water. The simplest organic compound is CH4.

8. Under the same conditions, the gas with the lowest density is hydrogen.

9. The most conductive metal is silver.

10, and the atom with the smallest relative atomic mass is hydrogen.

1 1, and the metal with the smallest melting point is mercury.

12, the most abundant element in human body is oxygen.

13, the element that constitutes the most kinds of compounds is carbon.

14, the most widely used metal in daily life is iron.

15, China first used natural gas; China's largest coal base is in Shanxi Province; China first used wet copper smelting; The earliest discovery of electrons was Thomson of England; Lavoisier, a Frenchman, first came to the conclusion that air is composed of N2 and oxygen.