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Al (OH)3+OH-=Al3++H2O+O2 Is this equation right? Why do some places see the generation of ALO2-+H2O?
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How to balance H2O2+H2CrO4→H2O+O2+Cr (OH)3? Specific process to trim
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- 1. Who can help me balance the following chemical equations: FeSO4+HNO3→Fe2(SO4)3+Fe (NO3)3+N2O+H2O; H2O2+H2CrO4→H2O+O2+Cr (OH)3
- 2. Equation for NA2O2 and H2O Reaction
- 3. Reaction Equation of Na2O2 with FeCl2
- 4. Na2O2 and CO2, H2O. So does Na2O2 react with H2O first or with CO2 first And explain why.
- 5. How to Write the Equation of Reaction of CO2 and H2O with Excess Na2O2
- 6. How to Balance NaClO3+HCl=Cl2+NaCl+H2O+ClO2 I've come up with four reactions, and I think they' re fine. Why does Cl in NaClO3 change to ClO2 and Cl in HCl change to Cl2? How to Balance NaClO3+HCl=Cl2+NaCl+H2O+ClO2 I've come up with four responses, and I think they' re all right. Why does Cl in NaClO3 change to ClO2 and Cl in HCl change to Cl2?
- 7. How to balance NaCO3+HCl -- NaCl+CO2+H2O? Why not? Is the equation wrong?
- 8. Equation Na2O2+HCl=Cl2+NaCl+? Required trim Can this reaction be used for rapid preparation of pure Cl2 in laboratory? What is the reason? Request two answers Equation Na2O2+HCl=Cl2+NaCl+? Trim Required Can this reaction be used for rapid preparation of pure Cl2 in laboratory? What is the reason? Request two answers
- 9. Fe (OH)2+O2+H2O forms Fe (OH)3, which is from white to grayish green to reddish brown. White is Fe (OH)2, brown is Fe (OH)3, then the gray-green?
- 10. How to balance the chemical equation Fe 2++Na 2O 2+H 2O=Fe (OH)3+O 2+Na + according to the conservation of electrons? How does Fe2++Na2O2+H2O=Fe (OH)3+O2+Na+? How does the chemical equation Fe2++Na2O2+H2O=Fe (OH)3+O2+Na+ be balanced according to the conservation of electrons?
- 11. Is Fe (OH)2+O 2=Fe 2O 3+H 2O?
- 12. How is Fe (OH)2+O2+H2O-Fe (OH)3 balanced? Is it observation? How to balance Fe (OH)2+O 2+H 2O-Fe (OH)3? Is it observation?
- 13. How to Balance NaCO3+HCl -- NaCl+CO2+H2O
- 14. How do identify sodium hydroxide solution and calcium hydroxide solution?
- 15. How to Distinguish Calcium Hydroxide and Sodium Hydroxide
- 16. A solid powder may be one or more of sodium hydroxide, calcium hydroxide, sodium carbonate, and calcium carbonate... A solid powder may be composed of one or more of sodium hydroxide, calcium hydroxide, sodium carbonate and calcium carbonate. The following experiments are conducted:1 take a small amount of solid and add sufficient water, stir, and there is insoluble substance;2 filter, add hydrochloric acid to the filtrate, and there is bubble. In the following judgment on the composition of solid powder, the incorrect is () A. There must be sodium carbonate B. Possible sodium hydroxide C. Must have calcium carbonate D. Possible calcium hydroxide
- 17. 2013 Liaoning College Entrance Examination General Question 10 Option A 2Fe+6H*=2Fe3 3H2 Why is it wrong? Why is D right?
- 18. Ion Equation of HCO3-+OH-
- 19. Inspection of ethanol combustion products CO CO2 H2O 1 Concentrated sulfuric acid 2 A clarified lime water B sodium hydroxide solution C clarified lime water 3 Hot copper oxide powder 4 Anhydrous copper sulfate How to sort? What is the function of ABC bottle solution? What does 3 do? Note: ABC devices in 2 are connected in one piece. Verify ethanol combustion product CO CO2 H2O 1 Concentrated sulfuric acid 2 A clarified lime water B sodium hydroxide solution C clarified lime water 3 Hot copper oxide powder 4 Anhydrous copper sulfate How to sort? What is the function of ABC bottle solution? What does 3 do? Note: ABC devices in 2 are connected in one piece.
- 20. How to calculate the valence of sulfate ion