Physics

Stella

3 December, 18:04

According to the law of conservation of mass, which of these is true.

a. When a physical change occurs, some of the mass is destroyed.

b. When a chemical change occurs, some of the mass is destroyed.

c. When both a physical and chemical change occurs, mass is added.

d. When either a physical or chemical change occurs, no mass is destroyed. I also don't know which subject this would fit! Sorry