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Why is a ring of scum forming around a bathtub a chemical change?
Wiki User
∙ 12y ago
Soap isn't complete dissolvable in the water. That mixed with body oil (also undissovable) begins to build up and form a layer around the tub.
"Ability to rust is a chemical property of iron"
"Words such as rust, corrode usually signify a chemical change." p. 53 Sect. 2.4, from chem book by Prentice Hall
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∙ 12y ago
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Is a scab forming over a wound a physical or a chemical change?
chemical
Setting of a jelly-is it a chemical change?
Yes, it is. This is because there is a physical change. Being a liquid forming a solid. There is a chemical reaction when the hot water is added to the powder, forming a liquid, which is cooled, forming a solid
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No. That is a chemical change. In a physical change, their is no change in chemical composition forming one or more new substances.
ice crystals forming on a window a chemical change?
yes
Is juice freezing and forming popsicles a physical or chemical change?
Its a physical change because the substance does not form and etc.
Is a cavity forming a physical or chemical change?
chemical
Is rust forming in a tin can a chemical change?
Yes. Iron Oxide is forming.
Is a scab forming over a wound a physical or chemical change?
chemical
Forming acid rain a chemical or physical change?
chemical
Is a scab forming over a wound a physical or a chemical change?
chemical
Setting of a jelly-is it a chemical change?
Yes, it is. This is because there is a physical change. Being a liquid forming a solid. There is a chemical reaction when the hot water is added to the powder, forming a liquid, which is cooled, forming a solid
Is water freezing and forming physical change or chemical change?
physical
Is clouds forming in the sky a chemical or physical change?
Original answer is INCORRECT. Clouds forming in the sky is a physical change because a chemical change requires a change in the chemical composition of a material and the H2O, no matter a solid liquid or gas, is always H20.
Is rust forming on the metal gate is a physical or chemical change?
Rust forming on a metal gate is a chemical change. It is a result of a chemical reaction between iron, oxygen, and water, which leads to the formation of iron oxide (rust).
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No. That is a chemical change. In a physical change, their is no change in chemical composition forming one or more new substances.
Is a salt getting formed a chemical change or physical change?
I think it is a chemical change Forming underground it is a chemical change Salt forming from a saline solution for example h20 + NaCl --delta-> h2 + O2 + NaCl (This is not a balanced solution) This is a physical change, since there is no change to the Sodium Chloride
Is corrosion of metals physical or chemical change?
It is a chemical change, where a chemical such as oxygen or chlorine combines with a metal, forming an oxide or chloride of that metal.
