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Almost certainly chemical. Color ... that is, absorption or emission of electromagnetic radiation in the visible band ... is usually due to the electronic structure of the compounds. Changing the electronic structure usually means that a bond has broken or formed, which is a chemical change.
However, certain types of color changes are physical. For example, when you heat a piece of metal and it begins to glow red, then orange, then yellow as you increase the heat, that's a purely physical change. Certain types of colors... like the swirling colors you see in a soap bubble... are produced by physical phenomena, and the changes there are physical (the color depends on the thickness of the soap film). "Mood Rings" are another example of something that exhibits a physical color change.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoChemical
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Is the color of iron wire a physical or chemical change?
Color is a physical change always.
Is color changing in leaves a chemical change or a physical change?
a chemical change
Is baking dough into bread a chemical or physical change?
chemical change. something that has to do with the heat.
Is changing color of a carnation a chemical or physical change?
It is a chemical change.
When you dye your hair is that physical change or chemical change?
Yes it is a chemical change because color change is an observed change that a chemical change has occurred. So you are very much right. :)
If the color changes it is a chemical or physical?
- Color is a physical property and the change of color also.- Color change may be a sign of a chemical reaction.
Is the color of iron wire a physical or chemical change?
Color is a physical change always.
Is the Change of color a physical change?
it is a chemical change
Is color changing in leaves a chemical change or a physical change?
a chemical change
Is a color changing in leaves a chemical change or physical change?
Chemical Change.
Is a color changing in leaves a physical or chemical change?
a chemical change
Is changing color of a carnation a chemical or physical change?
It is a chemical change.
Is baking dough into bread a chemical or physical change?
chemical change. something that has to do with the heat.
Is the change in leaves a chemical or physical change?
The change is leaf color is a chemical change.
Is purple color a physical and chemical change?
The color purple is a physical property, but if it appears during a chemical reaction, it is representative of a chemical change.
Is a silver metallic color of sodium metal a physical or chemical change?
Color is a physical property, not a change.
When could color change be a result of a physical change?
A color change is only a chemical change if the change is permanent, if the color change is not permanent, then it is likely a physical change. Let's look at Iodine for example (that's pronounced Eye-oh-deen), it is a solid metal that is grayish in color in its solid state, however in its gas state it's a purple or violet color. Once it reverts to its solid state, it turns gray again. This is a PHYSICAL property of Iodine. If the color changed permanently to something else, it would be a chemical change.
