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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.
Why is it hard to determine a chemical change?
It is not so hard.Some indicators of a chemical reaction are:- formation of new compounds - change of color- change of odor- release of a gas- change of the temperature (absorption or release)- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion - sometimes a sound is produced - possible chemiluminescence
Is the tear duct a physical barrier or a chemical barrier?
it is a chemical barrier because it produces tears that are chemicals. also- for your information, skin is a physical barrier along with the nose and mucus and cilia. sebum and stomach acid are chemical. :D
Why do solutions have color?
Some solutions have color due to the presence of certain compounds that absorb and reflect light at different wavelengths. This absorption and reflection of light can give solutions their characteristic color. The color of a solution can provide information about the chemical composition of the solute dissolved in it.
Why do you see green color only?
The human eye is most sensitive to the color green because it can distinguish more shades of green than any other color. Additionally, green is the color in the middle of the visible spectrum, making it easier for the eye to perceive and process.
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.
Is color a physical change?
Only if the color change is not permanent. Take 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.
How can you permantely change your eye color?
You can permanently change your eye color by getting eye surgery
How does honey change your eye color?
There is no scientific evidence to suggest that consuming honey can change eye color. Eye color is determined by genetics and cannot be altered by food or drink.
How can I change my eye color?
You can get contact lenses in a different color. You can not actually change the color of your eye balls.
Can anyone summarise the physical processes long answers needed please?
Physical processes is changes that can be seen from the eye. These changes affecting the form of a chemical substance but does not change its chemical composition.
The human eye interprets a change in wavelength as a change of what?
The human eye interprets a change in wavelength as a change in color. Different wavelengths of light correspond to different colors that are perceived by the eye.
Can honey be used to lighten eye color?
Honey can not change your eye color.
The color of a substance is a physical property?
physical property, because physical properties can be observed without changing the substance; chemical properties must undergo a chemical change to observe it's chemical potentialColor can be most easily understood at the reflection of light off a material that is recognised by the chemical changes it causes to the rods and cones of a person's eyes.......Light or (or photon) is energy that we perceive with our eyes just as heat is energy you perceive as heat. The range of energy that we can perceive with our eyes is called the "visible range" and can often be seen in the rainbow. The difference between the infrared energy and the visible light energy is the frequency.......If we take a prism and pass white light through it we see the colors of light. the prism has caused a (Refraction) physical change in the white light and separated it into the various frequencies that cause different chemical changes in our eyes that our brains identify as colors.......An object such as the fruit we know as an orange has a skin that our eyes perceive as orange in color because the same white light hits the orange and only the reflected frequencies that impact our eyes are those that cause the chemical changes that our brains identify as the orange color.......With this understanding of how we perceive color we should be able to answer is color a chemical or physical property of matter.......Given that a change in color is fundamentally the change in the ability to physically change what frequencies of light are reflected back to, and perceived by the eye.......This has nothing to do with what caused the change in reflectivity and further suggests that color is an indicator rather that an actual property of matter when discussing the nitty gritty of things
Is coloring a paper a chemical change?
AnswerI 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).* * * * *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.
How do you change eye color in a picture?
If you have programs on your computer that let you get rid of red eyes you could change the eye color by clicking the color you want.
Why is it hard to determine a chemical change?
It is not so hard.Some indicators of a chemical reaction are:- formation of new compounds - change of color- change of odor- release of a gas- change of the temperature (absorption or release)- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion - sometimes a sound is produced - possible chemiluminescence
