Question 12 Marks
State four difference between a physical change and chemical change.
Answer
View full question & answer→Four difference between a physical change and chemical change are:-
| Physical change | Chemical change |
| 1. In a physical change no new substance is formed. | 1. In a chemical change new substance is formed |
| 2. Temporarily change which can be reversed | 2. Permanent change and irreversible |
| 3. Weight of original substance doesn't change | 3. Weight of original substances may increase or decrease |
| 4. Energy like heat light etc. may or may not be absorbed or released | 4. Energy like heat, light etc. are given out or absorbed. |