Question

Write the differences between physical and chemical changes.​

Answer 1

Answer:

Physical changes only change the appearance of a substance, not its chemical composition. ... Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

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Answer 2

Answer:

Physical Changes:

• Temporary
• Reversible
• Only change the appearance of a substance, not its chemical composition.
• The original form of substance can be regained by simple physical method

Chemical Changes:

• Permanent
• Irreversible
• Cause a substance to change into an entirely new substance with a new chemical formula.
• Original substance cannot be obtained by simple physical method

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