Question

write different between chemical and physical changes​

Answer 1

Answer:

CHEMICAL CHANGE

1 THEY ARE IRREVERSIBLE CHANGE

2.new substance foermed

3.Example:Rusting of iron,Curd into milketc.

PHYSICAL CHANGE

1.They are reversibel change

2.No new substance formed.

3.Example:Ice into water,melting of iron

Explanation:

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Answer 2

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$\sf \blue {⪼ \: Physical \: change}$

• Only physical changes like odour, physical state, density, volume etc. changed and chemical properties remain unchanged

• No new substance is formed in a physical change.

• Very little or no energy in the form of heat, light or sound is usually absorbed or given out in a physical change

• It is a temporary change

• The original form of substance can be regained by simple physical method

• It is reversible

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$\sf \blue{⪼ Chemical \: change}$

• The chemical composition and chemical properties undergo a change

• A new substance is formed in a physical change.

• A chemical change is always accompanied by absorption or evolution of energy

• It is a permanent change

• Original substance cannot be obtained by simple physical method

• It is irreversible

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