Question

A physical change is a change
A. that does not change the identity of the substance
B. That changes the identity of the substance
C.In the chemical makeup of matter
D. from one compound to a new compound

Answer 1

Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.Physical changes occur when objects or substances undergo achange that does not change their chemical composition.