Question

In physical changes, the atoms or molecules that compose the matter do not change their identity, even though the matter may change its appearance.

a. True
b. False

Answer 1

True

Step-by-step explanation:

when a physical change occurs in a substance, the appearance might change but the chemical identity remains same. For example, if liquid water is heated, the water changes to gaseous form .This means the appearance of the water has changed, but the chemical identity remains same as both liquid water and steam has both oxygen and hydrogen as the component molecules or atoms.