color change reactions

Color change reactions occur when a chemical reaction causes a substance to change color. This can happen for various reasons, such as changes in pH, temperature, or oxidation states of elements. Common examples include litmus paper changing color in acidic or basic solutions, or the vivid colors seen in fireworks. In some cases, these reactions are indicators of chemical changes, allowing scientists and the public to observe and measure reactions visually. Understanding these changes provides insight into the processes happening at a molecular level and can be useful in various scientific applications.