Is a color a chemical change?

Answer 1

Yes.

The signs of a chemical change are:

- Change in smell

- Sounds

- Change in color

- production of gas

- change in temperature

Answer 2

Color is a physical property.

Answer 3

chemical

answ2. Colour is a physical property.

When illuminated by a white light, the colour seen of an object is that of the wavelengths of light NOT absorbed by the material.

For example, sulfur appears yellow, because all other colours are absorbed by it.

You may demonstrate this by illuminating your subject by a series of light samples, each passed through narrow-pass optical filters. Only that passed through the yellow filter will let the sulfur colour show.

A Gedanken experiment suggests that a rainbow of light from a prism should demonstrate this as well.

This might make a suitable experiment for a school science show????

Answer 4

Color itself is not a chemical, but some chemicals are colored, and chemicals play a role in the perception of color.

From the point of view of a human color indicates the wavelength at which light is reflected from a surface. Different materials absorb and reflect light in different ways. This leads to the wavelength of the light being reflected being changed. Our method of perceiving light (vision) can differentiate these wavelengths (by their effects on chemicals in the eye) and we see this as color. Not all animals see color exactly as we do (their eyes may be based on different chemicals, for example), but the basic mechanism is the same.