中学化学实验室-中考必备 1.17

Based on the chemistry practical experiments for junior high school students announced by the Ministry of Education:

1. Assembling apparatus for producing oxygen using potassium permanganate in the laboratory
2. Experiment of producing oxygen using hydrogen peroxide in the laboratory
3. Exploration of solute in the waste solution of carbon dioxide produced in the laboratory
4. Investigation of conditions for substance combustion
5. Investigation of the metallic activity of zinc, copper, and magnesium
6. Assembling a filtration device and filtering crude saltwater
7. Heating and evaporating a salt solution
8. Weighing 6.5 grams of sodium chloride using a tray balance
9. Preparation of a sodium chloride solution with a specific mass fraction
10. Differentiation of hydrochloric acid, sodium hydroxide solution, and distilled water
11. Determining the acidity or alkalinity of a solution using pH paper
12. Reaction between acidic copper sulfate solution and sodium hydroxide solution
13. Neutralizing hydrochloric acid with sodium hydroxide solution
14. Removing rust with dilute hydrochloric acid
15. Distinguishing between sodium hydroxide and calcium hydroxide solutions
16. Laboratory production and collection of carbon dioxide
17. Investigation of the reaction between carbon dioxide and water
18. Exploration of the metamorphosis of calcium hydroxide
19. Investigation of reactions between soluble bases and certain salts
20. Differentiation between sodium carbonate solution with added sodium sulfate

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