Current location - Zhou Gong's Dream Interpretation Network - Company naming - Spinach is rich in nutrients and is known as the "King of Vegetables". Folklore: Eating spinach and tofu together can easily lead to stones. A chemistry interest group responded to "Spinach Tofu"

Spinach is rich in nutrients and is known as the "King of Vegetables". Folklore: Eating spinach and tofu together can easily lead to stones. A chemistry interest group responded to "Spinach Tofu"

The oxalate in spinach reacts with the calcium salt in tofu to form calcium oxalate

(1) Completely precipitate the oxalate and carbonate in solution M

(2)CaCO 3 2HAc=Ca(Ac) 2 H 2 O CO 2 ↑; funnel, beaker, glass rod

(3) CaC 2 O 4; C

(4)①Exhaust the air in the device (to prevent explosion when CO reduces CuO);②H 2 O, CO 2, CO;③Add an exhaust gas treatment device after device F

(5)①CaO; ②1; ③200-400℃; CaC 2 O 4 CaCO 3 CO↑

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