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In a certain reaction system, there are reactants and products:o2.h2cro4.CR (OH)3.H2O.H2O2. In the known reaction, h2o2 only occurs as follows: H2O2~O2 is reversed... In a certain reaction system, there are reactants and products:o2.h2cro4.CR (OH)3.H2O.H2O2. In the known reaction, h2o2 only occurs as follows: H2O2~O2 Find the reaction equation
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What are the two chemical equations for carbon dioxide passing clear lime water to excess?
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- 1. Chemical equation for CO2 to clear lime water?
- 2. How to distinguish sodium hydroxide and calcium hydroxide?
- 3. About sodium hydroxide and calcium hydroxide Both are strong bases, but why can sodium hydroxide be produced in the reaction between sodium bicarbonate and calcium hydroxide? I don't think it makes sense to force the weak 、、、
- 4. What solution can be used to distinguish calcium hydroxide solution from sodium hydroxide solution?
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- 9. How to identify dilute sulfuric acid, dilute hydrochloric acid, sodium hydroxide solution, calcium hydroxide solution? Specific experimental process
- 10. 1 Reaction of sodium hydroxide and sulfuric acid 2 Reaction of calcium hydroxide solution and sulfuric acid 3 Reaction of copper hydroxide and hydrochloric acid 4 Reaction of copper hydroxide and sulfuric acid 5 Reaction of aluminum hydroxide and hydrochloric acid Complete the symbolic expression and indicate the basic reaction type to be reflected 1 Reaction of sodium hydroxide with sulfuric acid 2 Reaction of calcium hydroxide solution with sulfuric acid 3 Reaction of copper hydroxide with hydrochloric acid 4 Reaction of copper hydroxide with sulfuric acid 5 Reaction of aluminum hydroxide with hydrochloric acid Complete the symbolic expression and indicate the basic reaction type to be reflected
- 11. Is it possible to dissociate calcium hydroxide in the ion equation? Such as title Does the electrolyte dissolve in water?
- 12. Calcium hydroxide is slightly soluble, so can it be disassembled in the ion equation? Why?
- 13. Ion equation for reaction of magnesium oxide and dilute sulfuric acid?
- 14. Compared with the between magnesium, iron, copper and oxygen, and analyze the possible causes Compared with the reaction of magnesium, iron and copper with oxygen, which reasons may lead to the difference of difficulty and intensity of the reaction? Compare the reaction between magnesium, iron, copper and oxygen, and analyze the possible causes Compared with the reaction of magnesium, iron and copper with oxygen, which reasons may lead to the difference of difficulty and intensity of the reaction?
- 15. Add carbon dioxide to the calcium hydroxide solution until the solution becomes turbid and then clear, and then add excessive sodium hydroxide solution to become turbid. Why is the excess sodium hydroxide solution added later turbid? Add excessive carbon dioxide into the calcium hydroxide solution, the solution first becomes turbid and then becomes clear, and then add excessive sodium hydroxide solution to become turbid. Why is the excess sodium hydroxide solution added later turbid?
- 16. In the high ion equation, the micro-sol matter is not removed as a reactant, just like the ionic formula of MgCo3 reacting with HCl Please write down the ion equation for this reaction In the high ion equation, the micro-soluble matter is not removed as a reactant, just like the ionic formula of MgCo3 reacting with HCl Write down the ion equation for this reaction In the high ion equation, the micro-solutions are not removed as reactants, just like the ionic formula of MgCo3 reacting with HCl Write down the ion equation for this reaction
- 17. Which of the ion equations can or can not be disassembled? When changing the chemical equation to an ion equation ··· To be specific,··· should have examples... Which of the ion equations can or can not be broken? When changing the chemical equation to an ion equation ··· To be specific,··· should have examples...
- 18. Which substances in the ion equation can not be disassembled? I want to know the usual, now reviewing sodium, magnesium, aluminum and iron, preferably about these substances.
- 19. Reaction of calcium hydroxide with sulfuric acid
- 20. The chemical equation for the reaction of hydrated lime with carbon dioxide, hydrochloric acid, and sodium carbonate, respectively, to be balanced and precipitated by symbols (not verbalized in Chinese if signed) The lower footer numbers are enclosed in parentheses uppercase and lowercase letters Hydrated lime reacts with carbon dioxide, hydrochloric acid carbon dioxide, hydrochloric acid, and sodium carbonate, respectively, to be balanced and precipitated by symbols. The subscript numbers are enclosed in parentheses and are clearly written in upper and lower case Hydrated lime reacts with carbon dioxide, hydrochloric acid carbon dioxide, hydrochloric acid, and sodium carbonate, respectively, to be balanced and precipitated with symbols (not verbalized in Chinese if signed) The subscript numbers are enclosed in parentheses and are clearly written in upper and lower case