Question

please answer it (so important) What are the differences between physical and chemical changes?​

Answer 1

Physical change:

• Physical changes refers to the chages which can be reversed.
• No new substances are formed in a physical change.

Chemical change:

• Chemical changes refers to the chages which cannot be reversed.
• New substances are formed in a chemical change.

Answer 2

Answer:

The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in compositions

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