Question

A change is said to be a physical change when
A. No energy change occurs
B. All statements are correct
C. The change can be easily reversed
D. No new substances are formed ​

Answer 1

Answer:

A physical change is a change in which no new substance is formed. In a chemical change, there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

Physical changes can be reversed, chemical changes cannot be reversed.

For example, a cup of water can be frozen when cooled and then can be returned to a liquid form when heated.

Answer 2

Answer:

B

Explanation:

Option B satisfies the condition for physical change