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Anonymous users2024-02-06Sodium sulfate does not react with any substances to form yellow substances.
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Anonymous users2024-02-05Dilute sulfuric acid reacts with ferric oxide to form a yellow solution.
3h2so4+fe2o3=fe2(so4)3+3h2o
Dilute hydrochloric acid reacts with iron elemental matter to generate a light green solution 2HCl+Fe=FeCl2+H2 (gas symbol).
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Anonymous users2024-02-04Dilute sulfuric acid reacts with iron oxide to form iron sulfate, and the iron sulfate solution is a yellow solution.
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Anonymous users2024-02-03Summary. Hello, I think the reason for the yellowing is.
1.Industrial hydrochloric acid is made by reacting chlorine with water. Chlorine gas reacts with water to form hypochlorous acid, which in turn decomposes to form chlorine.
gas, so it will turn yellow. There is also an explanation 2Chlorine is transported in iron cans, hence the work.
When the cap is opened, the ferrous ions in the solution are oxidized by the oxygen in the air and become iron ions, and the iron ions are yellow, so the solution turns yellow.
Hydrochloric acid dissolves yellow, sulfuric acid dissolves and becomes clear.
Hello, I think the reason for the yellowing is 1Industrial hydrochloric acid is made by reacting chlorine with water. Chlorine gas reacts with water to form hypochlorous acid, which can be decomposed to form chlorine gas, so it will turn yellow.
There is also an explanation 2Chlorine is transported in iron cans, so the industrial hydrochloric acid will be mixed with ferrous ions, when the cap is opened, the ferrous ions in the solution are oxidized by the oxygen in the air and become iron ions, and the iron ions are yellow, so the solution turns yellow.
This one of mine is solid, a kind of scale of the board frame.
Hello, I don't think there are solids.
My solid is yellow after dissolving with hydrochloric acid, and it is clear after dissolving with sulfuric acid, but there is precipitation.
Just want to know what kind of substance this solid is.
Fe2O3 + 6HCI = 2FeC13 (pale yellow) + 3H20
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Anonymous users2024-02-02Dilute sulfuric acid reacts with bai diferric trioxide
A yellow solution is generated
3H2SO4+Fe2O3=Fe2(SO4)3+3H2O dilute hydrochloric acid reacts with iron to form a light green dissolved solution.
2HCl+FE=FECl2+H2 (gas symbol) original answer, I hope it can help you, if it helps you, I hope to adopt [your 10 points of satisfaction, the infinite motivation of our team].
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Anonymous users2024-02-01Dilute sulfuric acid and ferric oxide form yellow ferric ions, and dilute hydrochloric acid and ferrous oxide form light green ferric ions.
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Anonymous users2024-01-31In junior high school chemistry and high school chemistry, only Fe3+ is yellow, and Fe2+ is light green. So the oxide is ferric oxide. The elemental is iron.
The equation is not given, it can be found in chemistry books.
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Anonymous users2024-01-30Dilute sulfuric acid reacts with what oxide to form a yellow solution, Fe2O3
Dilute hydrochloric acid reacts with any elemental element to form a light green solution Fe
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Anonymous users2024-01-29The color of the copy of the common chemical substance (1), the color of the solid 1, the red solid: copper iron oxide 2, the green solid: the basic copper carbonate 3, the blue solid:
Copper hydroxide Copper sulfate crystals 4, purple-black solid: potassium permanganate 5, light yellow solid: sulfur 6, colorless solid:
Ice, dry ice, diamond 7, silvery-white solid: silver, iron, magnesium, aluminum, mercury and other metals 8.
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Anonymous users2024-01-28What type of chemicals is concentrated sulfuric acid in Zheng? （）a.Explosives.
b.Corrosives (correct answer).
c.Flammable liquids.
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Anonymous users2024-01-27Concentrated hydrochloric acid, usually due to the yellow color formed by the presence of ferric ions.
It is usually due to the fact that the three banquets of the water stall and the Tie Xingxiang early ions themselves have this yellow color, so they will be produced. That's it.
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Anonymous users2024-01-26The face of common chemical substances.
before running a), the color of the solid.
1. Red solid: copper.
Iron oxide. 2. Green solid: basic copper carbonate.
3. Blue solid: copper hydroxide.
Copper sulphate crystals.
4. Purple-black solid: potassium permanganate.
5. Light yellow solid: sulfur whispering.
6. Colorless solid: ice.
Dry ice. Diamond.
7. Silvery-white solid: silver. Iron. Magnesium.
Aluminium. Metals such as mercury.
Because the cement is made of calcium silicate.
as the main material. All Portland cement clinker based on calcium silicate, limestone or granulated blast furnace slag below 5%, and hydraulic cementitious materials made of appropriate gypsum grinding are collectively referred to as Portland cement, and are collectively referred to as Portland cement in the world. >>>More
Because nitrite has preservative properties and can be combined with myoglobin in meat to be more stable, it is often added in the food processing industry as a color retention agent in sausages and bacon to maintain a good appearance; Secondly, it can prevent the production of Clostridium botulinum and improve the safety of meat products. >>>More
Copper sulfate itself is white, and it turns blue when it encounters water, which is why you can use dry copper sulfate to check whether the product has water.
Water absorption (concentrated) corrosive dehydration.
Copper and concentrated sulfuric acid.
The ionic equation of the reaction is: Cu + 2H2 SO4 (concentrated) CuSO4 + SO2 + 2H2O. >>>More