Use the Internet to find out more about the structures of soaps and detergents. Explain why hand sanitizer would not be as effective as detergents to clean your clothes in washing machines.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

answer; talc and gypsum;

im pretty sure its b