Why does the separating funnel control the reaction rate? When producing oxygen with hydrogen peroxide Why can the separating funnel control the reaction rate? When producing oxygen with hydrogen peroxide

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• 3. A literal expression for the reaction of carbon dioxide with calcium hydroxide to produce calcium carbonate and water
• 4. In the series of Al3+→Al (OH)3→AlO2-→()→Al3+ changes,() A. Al (OH)3 B.AlCl3 C.HCl D.NaOH Why?
• 5. Is copper hydroxide a strong electrolyte and an ionic compound? What is the relationship between ionic compounds and strong electrolytes?
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• 8. Manganese dioxide appears in the laboratory when potassium permanganate and hydrogen peroxide are used to produce oxygen. A Manganese dioxide is a reactant in both reactions B Manganese dioxide is a product in both reactions C Manganese dioxide is a catalyst in both reactions D Manganese dioxide is a product in the former reaction and a catalyst in the latter.
• 9. Chemical equation for oxygen production from hydrogen peroxide and potassium permanganate in laboratory
• 10. The laboratory uses potassium permanganate, potassium chlorate and hydrogen peroxide solutions to produce oxygen. Please answer the following questions. The laboratory uses potassium permanganate, potassium chlorate and hydrogen peroxide solutions to produce oxygen. Please answer the following questions. (1) It is correct to state that A can be used with the same gas generating apparatus B can be used with the same gas to the same basic reaction type D reaction conditions are the same (2) In the preparation process, the catalyst to be added to the raw material in advance is (fill in the raw material name)______________ (3) If the solid residue after potassium permanganate oxygen production is added to potassium chlorate, the reaction process of potassium chlorate oxygen production can also be accelerated because ______________________________
• 11. What should be placed in a conical flask in a hydrogen peroxide and manganese dioxide oxygen production facility? What should I put in the funnel?
• 12. In the experiment of producing oxygen from hydrogen peroxide, if the separating funnel is changed into a long-neck funnel, what are the consequences
• 13. Production of Oxygen by Hydrogen Peroxide One student mixed 50 g hydrogen peroxide solution with 1 g manganese dioxide to produce oxygen. After complete reaction, the remaining mixed mass was weighed to be 49.4 G 1. Quality of oxygen produced by reaction 2. What is the mass fraction of hydrogen peroxide in the hydrogen peroxide solution used by the student? Manganese dioxide is only used here as a catalyst. Why should it be added? Can you explain the process and the analysis?
• 14. Production of Oxygen by Hydrogen Peroxide In this experiment, the method of "slowly adding hydrogen peroxide solution to the container containing manganese dioxide to produce and collect oxygen" has the advantage of "adding manganese dioxide to the tube containing hydrogen peroxide solution to produce oxygen ".
• 15. Comparing the production of carbon dioxide in the laboratory with the production of oxygen from potassium permanganate, the following statements are correct:() A. Gas generator may be the same B. Same reaction conditions C. Gas collection methods may be the same D. Same basic reaction type
• 16. Effect of Separating Funnel on Oxygen Production by Hydrogen Peroxide
• 17. What is the procedure for the double hydrolysis of aluminum metaaluminate ions? Why does not meta-aluminate and hydroxide ions form after hydrolysis of meta-aluminate? Thank you ~
• 18. Is it only the acid which is weaker than carbonic acid that can double hydrolyze with aluminum and ammonium ions? Is it only the acid less acidic than carbonic acid that can double hydrolyze with aluminum and ammonium ions?
• 19. Can meta-aluminate and ammonium ion coexist? Why? Can metaaluminate and ammonium ions coexist? Why? Can metaaluminate ion and ammonium ion coexist? Why?
• 20. Why can't aluminum ions co-exist with metaluminate and ammonium iron ions?