2. Cook the fish, add vinegar and cooking wine to remove fishy smell, and esterify (to produce ethyl acetate).
3. When making plain brocade, hot salt (usually iodized) meets lotus root slices, which turn blue (starch turns blue when it meets iodine).
4. Sprinkle salt powder on the gas flame, and the colorless flame will turn yellow. (flame reaction)
5. The kitchen knife after cutting kimchi is easy to rust if it is not cleaned in time (because of electrochemical corrosion).
6. Cut apples are easy to rust (enzymatic browning). You soak them in salt water or sugar water, and the effect is different. Try it yourself! !
7, homemade bubble liquid. Add water and sugar to the detergent, and blow out large bubbles (surface tension) and salt, and blow out many small bubbles.