Answer:
Physical change | Chemical change |
1.In a physical change only physical properties such as colour, physical state, density, volume, etc. Change; chemical properties remain unchanged | 1.In a chemical change, the chemical composition and chemical properties undergo a change |
2. No new substance is formed in a physical change | 2. A new substance is formed in a chemical change |
3. Very little or no energy in the from of heat, light of sound is usually absorbed of give out in a physical change. | 3. A chemical change is always accompanied by absorption or evolution of energy |
4.A physical change is a temporary change | 4.A chemical change is a permanent change |
5. The original from of substance can be regained by simple physical methods. | 5.original substance can not be obtained by simple physical methods |
6.A physical change is reversible | 6.A chemical change is irreversible |
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