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There is also a very weak hydrolysis reaction. H2S is a gas, and hydrosulfuric acid is an aqueous solution of hydrogen sulfide gas, which is a mixture, and is a volatile dibasic weak acid. Follow-up:
The ionization process of water is not ionized into hydronium ions and hydroxide ions, why is there no in your step-by-step ionization formula Follow-up question: The ionization process of water is not ionized into hydronium ions and hydroxide ions, why is there no in your step-by-step ionization formula: Water can undergo extremely weak ionization, and the ionization equation is:
H2O+H2O H3O+ +OH-, abbreviated as H2O H+ +OH-, is an endothermic process. The ionization of water is caused by the interaction between water molecules and water molecules, so it is extremely difficult to occur.
Water is a amphoteric substance that can both release and accept protons. Water also dissociates weakly to a certain extent, and protons are transferred from one water molecule to another, forming H3O+ and OH-.
Hydrated ions H3O+ are usually abbreviated as H+ Supplement: H2O+H2O H3O+ +OH-, abbreviated as H2O H+ +OH-, does not mean that a water molecule can be ionized into H+ and OH-, this is just a shorthand.
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It is a physical change process that has no chemical equation and is dissolved in water.
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When there is excess acid in concentrated sulfur fiber stool: H2S + 3H2SO4 = 4SO2 + 4H2O When there is excess hydrogen before sulfur destruction and pin pin is rude: 3H2S + H2SO4 = = 4H2O + 3S When the concentration of hydrogen sulfide and concentrated sulfuric acid is about the same:
h2s+h2so4=s↓+so2↑+2h2o
It does not occur at the same time, but the amount of reaction that conforms to which one occurs.
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The reaction between hydrogen sulfide (H2S) and concentrated sulfuric acid (H2SO4) produces sulfur dioxide (SO2) and water (H2O). The chemical equation for the reaction is as follows:
h2s + h2so4 so2 + 2h2o
This reaction describes the chemical change between hydrogen sulfide and concentrated sulfuric acid, in which hydrogen sulfide and sulfuric acid react to produce sulfur dioxide and water. Please note that this is only a simplified representation of the chemical equation, and the specific reaction conditions and reaction rates may be affected. In laboratory or industrial applications, specific temperatures, pressures, and reaction conditions may be required to induce the reaction to occur.
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h2s+h2so4=s+so2+2h20
Because H2S is reducible, concentrated sulfuric acid has oxidative and silver contact, and the reaction can occur in the cavity stool.
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H2S + H2SO4 (concentrated) ==SO2 +S + 2H2O concentrated sulfuric acid.
Dilute silver sulfuric acid + 6-valent sulfur has no oxidizing ridge at room temperature. If the wine is hot under hot conditions, the final product is SO2 H2S + 3H2SO4 (concentrated) == Heating == 4SO2 + 4H2O
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When there is an excess of concentrated sulfuric acid: H2S + 3H2SO4 = 4SO2 + 4H2O When there is an excess of hydrogen sulfide: DU3H2S + H2SO4 = = 4H2O + 3S When the amount of hydrogen sulfide and concentrated sulfuric acid is the same:
h2s+h2so4=s↓+so2↑+2h2o
Concentrated sulfuric acid is highly corrosive: at atmospheric pressure, boiling concentrated sulfuric acid can corrode all metals except iridium and ruthenium (even gold and platinum), and the number of elemental metal species that can be corroded even exceeds that of aqua regia. Sulfuric acid has strong oxidizing properties at high concentrations, which is one of the biggest differences it has from dilute sulfuric acid.
At the same time, it also has dehydration, difficult volatility, acidity, water absorption, etc.
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Four sulfur elements in excess of hydrogen sulfide.
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Introducing a sufficient amount of sulfur dioxide gas into the sodium sulfide solution requires the chemical equation of the reaction to be deduced.
Analysis: The acid corresponding to sulfur dioxide is sulfurous acid, and sodium sulfide is the salt of hydrosulfuric acid. Sulfurous acid is stronger than hydrosulfuric acid, and by the reaction principle of "strong to weak", sulfur dioxide is passed into the sodium sulfide solution, and weaker acid hydrogen sulfuric acid should be freed.
However, hydrogen sulfide is reducible, and the oxidation of sulfur dioxide is just right to oxidize hydrogen sulfide (centering reaction), so the precipitation of sulfur is finally obtained. And because of the excess of sulfur dioxide, the salt produced is the acid salt sodium bisulfite. The total reaction equation is:
so2+2na2s+
h2os↓+
nahso3。
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No way. The oxidation of Cl2 is not enough, and it cannot be oxidized to SO42-, and only SH2SCL2S can be obtained
HCL implementation:
Metathesis reaction: H2S
cuso4cus↙
H2SO4, the well-known reaction of weak acids to strong acids.
Generate cus:h2s
cuso4cus↙
h2so4.
Generate Cu2s: 2H2S
so2sh2o;s
cu==△cu2s.
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Hydrogen sulfide + chlorine.
h2s+cl2=2hcl+s↓
Hydrogen sulfide + oxygen.
2H2S + 3O2 = Ignition = 2H2O + 2SO2 Hydrogen Sulfide + Sulfur Dioxide.
2h2s+so2=3s↓+2h2o
Hydrogen sulfide + dilute hydrochloric acid, hydrogen sulfide + concentrated hydrochloric acid (does not seem to react, because the hydrogen sulfide preparation method is as follows: Fes + 2HCl = FeCl2 + H2S).
Hydrogen sulfide + dilute nitric acid.
2HNO3 + 3H2S ===3S +2NO +4H2O hydrogen sulfide + concentrated nitric acid.
H2S + 2Hno3 ===S +2NO2 + 2H2O hydrogen sulfide + iron chloride.
H2S+2FeCl3=2FeCl2+S +2HCL Hope it helps.
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Molecular formula: H2S
Laboratory method: Fes+H2SO4 (dilute)=FeSo4+H2S After contact with hydrogen sulfide and silver, black-brown silver sulfide will be produced
H2S + 2AG AG2S + H2 Combustion (decomposition) product: sulfur dioxide.
Chemical equation: 2H2S + 3O2 = = 2H2O + 2SO2 (O2 excess) 2H2S + O2 = = 2H2O + 2S (O2 insufficient).
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Aluminium sulfide, beryllium sulfide and chromium sulfide undergo a hydrolysis reaction in contact with water to produce hydrogen sulfide and corresponding metal hydroxides.
Hydrogen sulfide is an important chemical raw material, commonly known as "rotten egg gas or Qihan", which is the hydride of sulfur and a colorless, highly toxic gas with a rotten egg-like odor. It is decomposed from sulfur-containing substances and is a common acidic and harmful gas.
Hydrogen sulfide reacts with a variety of ions to produce water-insoluble sulfides, which can blacken the surface of copper and silver, and are widely used in metal smelting, natural gas, hydrochloric acid and sulfuric acid manufacturing industries.
In the manufacture of various sulfides such as kraft pulp, rayon, rayon, rubber and carbon disulfide, hydrogen sulfide gas is emitted. In some chemical reactions, the unstable sulfur compounds can also decompose hydrogen sulfide.
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I'll write down its properties and the equations......
1) Flammability: ignition.
H2S + 3O2 = 2SO2 + 2H2O (Complete Combustion) Gear Mill 2H2S + O2 = 2S + 2H2O (Incomplete Combustion) 2) Reducibility:
The sulfur in hydrogen sulfide is -2 valence, which is the lowest price of sulfur, and the non-metallic nature of sulfur is not very strong, and the ability of sulfur atoms to obtain electrons to accompany dates is not very large, so the reduction of hydrogen sulfide is strong. The reducibility of hydrogen sulfide is mainly manifested in the following aspects:
h2s + cl2 = s + 2hcl
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Hydrogen sulfide is dissolved in water to form hydrosulfuric acid (aqueous solution of hydrogen sulfide), that is, electrolysis occurs to form -2 valent sulfur ions.
1 valent hydrogen ion.
Hydrogen sulfide is an inorganic compound with the chemical formula H S. Under normal circumstances, it is a colorless, flammable acid gas, with a foul odor and a smell like rotten eggs when the concentration is low; At high concentrations, there is no odor (because high concentrations of hydrogen sulfide can paralyze the olfactory nerve). It is soluble in water, and at 0 °C, 1 mole of water can dissolve about moles of hydrogen sulfide. >>>More
For hydrogen sulfide.
The risk of corrosion comes from two main sources. First, there is the corrosion loss caused by the oxidation of the material. The other is due to the hydrogen atom in hydrogen sulfide. >>>More
One more than hydrogen and one more oxygen.
For a good understanding, you can use the following principle: >>>More