It is an indicator. If you don't know the answer check your science book.
Indicators such as litmus paper
If a substance changes the color of a blue litmus paper to red, it is acidic blue to red
Very probable a chemical change; but also physical changes can be the cause.
Chemical change.
the substance that gives hair it color is the genes from your mom or your dad_____________________Melanin gives hair its color.
This is a pH indicator.
no we cannot everything changes with time even a pure substance looses it's some of the properties after some time so the color also changes .
An indicator
Chemical
Indicators such as litmus paper
Indicators such as litmus paper
An indicator refers to a substance that changes color to show how a given substance is either acidic or basic.
Indicators
when you paint, it changes the color of the subject you are painting on and causes the substance to moist up and get wet.
If a substance changes the color of a blue litmus paper to red, it is acidic blue to red
When a substance changes, any or all of its properties can also change.
When a substance changes from a liquid to a gas energy is absorbed. When a substance changes from a gas to a liquid energy is released.