What does physical and chemical change have in common?

Answer 1

A physical change to an object is a change in properties not involving the chemical makeup. In other words, a physical change is any change you can make to an object without changing the actual substance. (I.e. state of matter, size, shape, color . . .etc.)

A chemical change is a change that forms a new substance through a chemical reaction. A chemical reaction is often signaled by bubbling or fizzing, but the only real way to prove a chemical reaction is by coming up with a new substance.

So physical changes leave you with the same substance (slightly altered in appearance/texture etc.), but chemical reactions give you a new substance.

Answer 2

Chemical and physical changes are not similar.

Chemical change: a process in which the nature of molecules is changed.

Ex.: burning, precipitation, decomposition.

Physical change: a proces which don't imply a change in the nature of molecules.

Ex.: melting, boiling, freezing.

Answer 3

Physical and chemical changes both involve a transformation in matter. However, physical changes do not alter the chemical composition of substances, while chemical changes result in the formation of new substances with different chemical properties.

Answer 4

they both alter an object in some way or they both change there main object.

THE CORRECT ANSWER WOULD BE>>>> there is no change in the total mass involved in the change

Answer 5

i think its tat both changes require energy....

Answer 6

Chemical changes can cause physical changes (IE change color) however physical changes cannot cause chemical changes. Otherwise their is no similarity.

Answer 7

They are both used to classify substances.