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Equation for the Reaction of Dilute Nitric Acid with Hydrogen Sulfide Equation for Reaction of Dilute Nitric Acid with Hydrogen Sulfide
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What is the equation for the reaction of ferrous oxide with dilute nitric acid?
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- 1. Sequence of reaction between Fe2O3,Fe,FeO and nitric acid
- 2. The addition of 120mL 4mol / L of dilute nitric acid to a mixture of Fe, FeO and Fe2O3 is suitable for mixing... The addition of 120mL 4mol / L of dilute nitric acid to a mixture of Fe, FeO and Fe2O3 results in complete dissolution of the mixture and the production of 1.344 L of NO under standard conditions. The addition of KSCN solution to the resulting solution results in no blood red. If the mixture of the same mass is reduced with sufficient H2 under heating conditions, the production of iron is A,0.24mol B0.21mol C0.16mol D0.14mol The amount of iron
- 3. Mixtures of two or more known substances in FeO,Fe,Fe2O3, Fe3O4 If that atomic numb ratio of iron element to oxygen element is known to be 1:1, A must contain both Fe2O3 and Fe3O4 B contains only Fe and Fe2O3, Fe3O4 C must contain FeO D Unable to determine if FeO is present In a mixture of Na2S,Na2SO3,Na2SO4 three substances If the mass fraction of oxygen element is 22%, what is the mass fraction of sulfur element
- 4. To a certain amount of mixture of Fe, FeO and Fe2O3, add 120mL 4mol L of dilute nitric acid to completely dissolve the mixture, release 1.344L NO (standard condition), add KSCN solution to the resulting solution, and no red color appears. If the mixture of the same mass is reduced by heating with sufficient hydrogen, the amount of iron can be () A. 0.24 mol B. 0.21 mol C. 0.16 mol D. 0.14 mol
- 5. 2KMnO4+16HCl==2KCl+2MnCl+5Cl2+8H2O,
- 6. What is the sum of the surface area of a rectangular parallelepiped of 8 cm in length cut into two cuboids? What is the surface area of a rectangular parallelepiped of five centimetres? Apply paint to the four roof pillars of the hall of a building. The cross section of each pillar is 0.5 square. The height of each pillar is 5 meters. The total amount of paint required is 4 yuan per square meter. A classroom is 8 m long and 6 m wide, to paint the walls and ceilings of the classroom, if the area of the doors and windows is 22 square meters, and the average per square meter of paint 0.25 kg, per kilogram of paint to earn 25 yuan, how much do you make
- 7. When a cube is cut into two cuboids, the surface area increases by 18 cm2. What is the sum of the body surface areas of the two cuboids?
- 8. 6. The genetic material of organism and the undertaker of life activity are 1 Nucleic acid 2 Ribonucleic acid 3 Deoxyribonucleic acid 4 Protein 5 Lipids 6 Carbohydrate A 1 4 B 2 5 C 3 6 D ②④ Excuse me this question why answer has 4 protein? Please analyze clearly,
- 9. The lab needs 5 grams of oxygen for the experiment. How much water does the electrolytic method need?
- 10. The oxygen used in production; the oxygen used in medicine; the oxygen produced by electrolysis of water in the laboratory; they are all oxygen, but are there any differences between them? What I want is the difference between oxygen and oxygen in the three types of oxygen, such as (the difference between solid impurities and gas impurities)
- 11. FeS dissolved in dilute nitric acid Dissolution of ferrous sulfide in dilute nitric acid
- 12. FeS dissolved in dilute nitric acid, equation? The answer is that FeS is oxidized to Fe3+, S, why? Can you write the equation?
- 13. Reaction of Ferrous Sulfide with Dilute Nitric Acid If iron sulfide reacts with dilute nitric acid, if it is concentrated, redox reaction should occur, but here it is dilute, whether hydrogen sulfide is generated, and what the ion equation should be written as Reaction of ferrous sulfide with dilute nitric acid If iron sulfide reacts with dilute nitric acid, if it is concentrated, redox reaction should occur, but here it is dilute, whether hydrogen sulfide is generated, and what the ion equation should be written as Reaction of ferrous sulfide with dilute nitric acid If iron sulfide reacts with dilute nitric acid, if it is concentrated, redox reaction should occur, but here it is dilute, whether hydrogen sulfide will be generated, and what the ion equation should be written as
- 14. Chemical reaction equation of dilute nitric acid and magnesium hydroxide? It's to be trimmed! Chemical reaction equation of dilute nitric acid and magnesium hydroxide? It's a trim! Chemical reaction equation of dilute nitric acid and magnesium hydroxide? It's to be balanced!
- 15. When there is potassium permanganate to produce oxygen, the actual generated value is more than the theoretical value. How to verify that the excess oxygen comes from potassium permanganate (residue from experiment)?
- 16. Potassium permanganate is decomposed by heating to form potassium manganate, manganese dioxide and oxygen
- 17. (2/2), The solution PH=?
- 18. At room temperature, in a solution of pH=12, the c [OH-] ionized by water is () A.1.0×10-7mol•L-1 B.1.0×10-6mol•L-1 C.1.0×10-6mol•L-1 D.1.0×10-12mol•L-1 At room temperature, in a solution of pH=12, the c [OH-] ionized by water is () A.1.0×10-7mol•L-1 B.1.0×10-6mol•L-1 C.1.0×10-6mol•L-1 D.1.0×10-12 mol•L-1
- 19. C (OH+)=() in KOH solution with pH=12.0, c (OH+)=() in KCN solution with pH=12.0;
- 20. Ammonia water ionized sodium hydroxide In 0.1 mol/L ammonia solution, there is an ionization equilibrium of NH3H2O==NH4++OH-. 1. Adding sodium hydroxide, how the chemical equilibrium will move, how the concentration of ammonia and hydroxide will change, and how the number of ammonia ions will change If hydrochloric acid is added, how the chemical equilibrium will move, how the concentration of ammonia and hydroxide will change, and how the number of ammonia ions will change 3 If water is added, how the chemical equilibrium will move, how the concentration of ammonia and hydroxide will change, and how the number of ammonia ions will change