0
Still curious? Ask our experts.
Chat with our AI personalities
Steve
Rene
TaigaChlorophyll gives leaves their green color by reflecting green light and absorbing other wavelengths for photosynthesis. As leaves age and chlorophyll breaks down, other pigments such as carotenoids and anthocyanins become visible, leading to a change in leaf color during fall.
Add your answer:
Earn +20 pts
When could color change be a result of a physical change?
Color change can occur as a result of a physical change when there is a change in the way light interacts with a material, such as through dispersion or absorption. This can happen due to alterations in the physical structure of the material, such as grinding or crushing a substance, or through changes in temperature or pressure.
Why is color change considered a chemical change?
Color change is considered a chemical change because it involves a transformation at the molecular level, where the chemical composition of the substance is altered, leading to a change in its color. This change is irreversible and indicates a chemical reaction has occurred.
Is a silver metallic color of sodium metal a physical or chemical change?
The formation of a silver metallic color on sodium metal is a physical change. This change is due to the reflection of light by the metal's surface, and the silver color is a property change and does not involve a change in the chemical composition of the sodium metal.
How do bases change the color of bromothymol?
Bases change the color of bromothymol blue indicator from yellow to blue. This color change occurs because in acidic conditions, bromothymol blue appears yellow, while in basic conditions, it shifts to blue.
Which is not proof that a chemical change has occurred?
Change in color is not proof that a chemical change has occurred. A change in color can sometimes be the result of a physical change without any new substances being formed.
