Question

List Three Differences Between a Physical changes and a Chemical Change?

Answer 1

Answer:

physical changes are reversible but chemical changes are not like that.

p.C no new substance form but in C.C new substance form

p.c only physical state changes but in chemical changes the properties of the object changes

physical change ex tearing of paper chemical change ex burning of paper

Answer 2

Answer:

Physical change - It affects only physical properties i.e. shape, size, etc.

Chemical change - It affects both the physical and chemical properties of the substance including its composition.

Physical change - It involves very little to no absorption of energy.

Chemical change - During a chemical reaction, absorption and evolution of energy take place.

Physical change - Some examples of physical change is freezing of water, melting of wax, boiling of water, etc.

Chemical change - A few examples of chemical change are digestion of food, burning of coal, rusting, etc.