I would say yes... in some way chemistry is like microcosmical Physics... if a substance absorbes light in a wavelength the eye can detect (ca. 400 nm to 800 nm), this absorbed wavelength can be transformed to its colour in the color-spectrum... so this color is absorbed... that means our eyes see the complementary color to that absorbed color (according to the color-circle of Johannes Itten).
I.e. the absorbed color is violet... then our eyes see yellow (the complementary color to violet). Or if green is absorbed... you should see red.
If you now have a chemical substance... that suddenly changes color... something about its chemical structure has changed. I would say not the color change is a chemical property, but the color itself that the specific substances have; that is a chemical property (the one of absorption of the complementary color).
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While true, the above is not the whole answer.
However, there are some instances where it is a physical property. A film of petrol (gasoline) on water, or the skin of a soap bubble will change colour - not because of any chemical changes - but because of changes in the thickness of the film affect its optical properties. A purely physical change.
The heat radiated by objects depends on their temperature. For example a piece of iron can be heated until it glows red but chemically it is not altered.
A chemical change is also referred to as a chemical reaction. It typically involves the transformation of substances into new substances with different chemical compositions.
The reaction of potassium chlorate turning into oxygen gas is a chemical change because the composition of the substance is altered, resulting in the formation of different molecules with different properties.
It depends. In most cases, it is a chemical change as the different colored species have different chemical structures. However, it is possible to change color by very finely dividing particles of matter and this is a physical change.
chemical change
No, decomposing is a chemical change because it involves the breaking down of molecules into simpler substances. This results in a change in the chemical composition of the original material.
Coloring on a white piece of paper is a physical change because the color change is reversible and does not alter the chemical composition of the paper. The paper remains paper even after coloring on it.
physical. because its still paper
chemical !!! obviously.......
No, food coloring does not cause a chemical reaction. Food coloring is a substance added to food to change or enhance its color, but it does not undergo a chemical change itself. It simply dissolves in the food or liquid it is added to.
Yes, adding food coloring to cake icing to make it pink is a physical change, not a chemical change. A chemical change involves a change in the chemical composition of a substance, while a physical change only alters the appearance of a substance without changing its chemical makeup. In this case, the food coloring mixes with the icing but does not create a new substance with different chemical properties.
When a paper bag rips, the chemical composition of the paper does not change. The ripping of the paper bag is a physical change, where the arrangement of the paper fibers is altered, but the chemical bonds between molecules remain the same.
physical change You are making a mixture of the icing and food coloring, which is a physical change.
Tearing paper represents a physical and not a chemical change. Chemical bonds are not broken in this instance, but paper is physically separated (by force) from other paper.
No, cutting paper is a physical change, not a chemical change. The paper's chemical composition remains the same before and after cutting; only its physical shape is altered.
Wrong
its a chemical changePaper being burned a chemical change as it is irreversible.Chemical change.chemical.... do work son!ChemicalIt is chemical change, a.k.a a chemical reaction.Burning a piece of paper is a chemical change
It is a physical change because it is still a sheet of paper.