Discuss how does mass of a substance change during physical and chemical change
Answers
Answer:
During a physical change, the arrangement of particles may change but the mass, number of atoms and number of molecules will stay the same. Physical changes involve small changes in energy and are easily reversible.
A chemical change may involve a decomposition or synthesis reaction.In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. Mass cannot be created or destroyed in a chemical reaction.
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Explanation:
during a physical change the arrangement of particles may change but the mass, number of atoms and number of molecules will stay the same.
during a chemical change the mass and number of atoms is conserved, but the number of molecules remain same . chemical reaction involves large changes in energy.