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ProfessorCopper vessels lose their luster when exposed to air due to a process called oxidation. Oxygen in the air reacts with the copper to form copper oxide, giving the surface a dull appearance. This can be reversed by cleaning the copper with a mixture of vinegar and salt, or by using a commercial copper cleaner to restore its shine.
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Is stainless steel lustrous?
Stainless steel is an alloy of iron, chromium, carbon and nickel. It never rust and hence,maintains its lustre. Whereas, the iron exposed in moist air rusts. It is covered with reddish substance and loses its lustre. And hence stainless steel has more lustre than iron.
What are the two forms of copper and what are the elements that form them?
The two forms of copper are copper(I) and copper(II). Copper(I) is formed when copper loses one electron, while copper(II) is formed when copper loses two electrons. Copper(I) is typically bonded with elements such as chlorine or iodine, while copper(II) is commonly bonded with elements like oxygen or sulfur.
What is the chemical formula for copper ll?
The chemical formula for copper (II) is Cu^2+. When copper loses 2 electrons, it forms a 2+ cation.
Why does copper blue hydroxide change to black copper oxide?
Copper blue hydroxide changes to black copper oxide due to a chemical reaction called thermal decomposition. When heated, copper blue hydroxide loses water molecules and oxygen, leading to the formation of copper oxide, which has a black color.
What is effloroscent?
Efflorescent refers to a substance that loses moisture and forms a powdery deposit on its surface. This phenomenon often occurs in salts and minerals when they are exposed to air.
