Question

write 2 points on differences of between physical and chemical changes

Answer 1

Hey Mate!!

here is ur ans........

PHYSICAL CHANGES : 1. The properties of the original substance remain the same in the physical change.
2. Their composition remains unchanged.
such a change is called a physical change.
3. e.g. evaporation,boiling,disolution,etc.

CHEMICAL CHANGES : 1. The change due to which one substance is transformed into another substance having new and different properties is called a chemical change.
2. e.g. photosynthesis,corrosion,etc.

hope it's help!!☺☺

Answer 2

There are several differences between a physical and chemical change in matter or substances. Aphysical change in a substance doesn't changewhat the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.
physical change is reversible and chemical change is irevercible