The difference between concentrated sulfuric acid and water absorbent The teacher said: Water loss in a single molecule is called dehydration. I think: there is water is water absorption, no water is called dehydration Please answer in detail, to determine the answer

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• 1. A mixed acid solution of hydrogen peroxide and concentrated nitric acid? I am currently in the process of oxidizing carbon nanotubes. I want to do secondary oxidation with hydrogen peroxide. The first step is to oxidize with mixed acid of concentrated nitric acid: concentrated sulfuric acid =1:3, and then oxidize with hydrogen peroxide. If I directly add hydrogen peroxide into the mixed acid, the oxidation effect of hydrogen peroxide will be enhanced, or the oxidation effect of hydrogen peroxide will disappear after hesitating with the reaction of mixed acid? A mixed acid solution of hydrogen peroxide and concentrated nitric acid? I am now in the carbon nanotubes oxidation, currently want to use hydrogen peroxide to do secondary oxidation. The first step is I use concentrated nitric acid: concentrated sulfuric acid =1:3 mixed acid oxidation, and then oxidation with hydrogen peroxide, if I directly add hydrogen peroxide into the mixed acid, the oxidation of hydrogen peroxide will strengthen, or the oxidation of hydrogen peroxide will hesitate to react with the mixed acid and disappear?
• 2. Why is the concentrated sulfuric acid in the esterification reaction a water absorbent rather than a dehydrating agent, not an intermolecular dehydration?
• 3. What is the product of ethanol at different temperatures with concentrated sulfuric acid as catalyst? What products can ethanol produce at different temperatures with concentrated sulfuric acid as catalyst?
• 4. The difference between absorbent and dehydrating agent It would be better to give examples
• 5. How to write the ion equation of excess Ca (HCO3)2 solution with NaOH solution?
• 6. Ca (hso3) Add excess naoh ion equation nahco3 Add a small amount of ca (oh)2 ion equation
• 7. How to distinguish NaOH from Ca [OH ]2
• 8. NaHCO3(small amount)+ Ca (OH)2 and NaHCO3(excess)+ Ca (OH)2
• 9. ON THE CHEMICAL EQUATION OF REACTION OF Ca (HCO 3)2 WITH EXCESS NaOH NaHCO3 reacts with excess Ca (OH)2 to form NaOH Then Ca (HCO3)2 reacts with excess NaOH, and the OH radical is also excessive. Why is there no Ca (OH)2? ON THE CHEMICAL EQUATION OF REACTION OF Ca (HCO3)2 WITH EXCESS NaOH NaHCO3 reacts with excess Ca (OH)2 to form NaOH Then Ca (HCO3)2 reacts with excess NaOH, and the OH radical is also excessive. Why is there no Ca (OH)2?
• 10. What happens when Ca (HCO3)+ NaOH (sufficient) is reacted
• 11. The action of concentrated sulfuric acid in the esterification reaction can be written as dehydrating agent and catalyst. I know the most accurate should be water absorbent and catalyst
• 12. The advantage of producing oxygen with hydrogen peroxide is.
• 13. The experiment-the process of producing oxygen with potassium permanganate, hydrogen peroxide, potassium chlorate, the difference and the same The experiment -- the process of producing oxygen with potassium permanganate, hydrogen peroxide, potassium chlorate, the difference and the same
• 14. 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 ______________________________
• 15. Chemical equation for oxygen production from hydrogen peroxide and potassium permanganate in laboratory
• 16. 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.
• 17. Chemical Reaction Equation for KOH+NaHCO3, Ion Equation
• 18. Like CH3- CH - CH2- CH3↓ CH3 You tell me the organic matter! Not at all! Isn't that the first... Like CH3-CH-CH2-CH3 ↓CH3 Talk to me about your organics! Not at all! Isn't the hydrogen in the first CH3 not enough, borrowed one from the hydrogen in CH! That's five carbons. That's not enough hydrogen! Like CH3- CH - CH2- CH3↓ CH3 You say this organic matter to me! Not at all! Isn't that the first... Like CH3-CH-CH2-CH3 ↓CH3 Talk to me about your organics! Not at all! Isn't the hydrogen in the first CH3 not enough, borrowed one from the hydrogen in CH! That's five carbons. That's not enough hydrogen!
• 19. Is copper hydroxide a strong electrolyte and an ionic compound? What is the relationship between ionic compounds and strong electrolytes?
• 20. In the series of Al3+→Al (OH)3→AlO2-→()→Al3+ changes,() A. Al (OH)3 B.AlCl3 C.HCl D.NaOH Why?