Question

How does the color-changing milk experiment demonstrate a reaction between substances?

a) By using milk, dish soap, and food coloring to create a chemical reaction.
b) By mixing different liquids together to create a colorful solution.
c) By freezing milk and observing changes in color.
d) By heating milk and observing the reaction.

Answer 1

The color-changing milk experiment demonstrates a chemical reaction between substances by using milk, dish soap, and food coloring. The proteins in milk are denatured, causing the color change, and a transfer of energy occurs during the reaction.

Step-by-step explanation:

The color-changing milk experiment demonstrates a reaction between substances by using milk, dish soap, and food coloring to create a chemical reaction. This reaction involves the interaction between the proteins and fats in milk and the dish soap, which causes the milk to change color. The addition of food coloring helps to make the color change more noticeable.

During the reaction, the proteins in milk are denatured, meaning their structure is altered. This change in structure is what causes the milk to change color. As a result of the reaction, a transfer of energy occurs in the form of heat, and bubbles may be observed as gas is produced.