Question

difference between physical and chemical changes

Answer 1

Hey mate In PHYSICAL CHANGE no new substance is formed eg. when we break chalk into pieces, it remains chalk..
in CHEMICAL CHANGE new substance is formed like change of milk into curd
Hope it helps ☺️!

Answer 2

hey.. mate here's yur ans..
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PHYSICAL CHANGE:
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1)PHYSICAL CHANGE ONLY EFFECTS ON PHYSICAL PROPERTIES
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2)PHYSICAL CHANGE PRODUCE NO ENERGY
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3)PHYSICAL CHANGE PRODUCE NO NEW SUBSTANCE THE ATOMS ARE ARRANGED THE SAME WAY IN THE PRODUCT AND REACTANTS
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4) PHYSICAL CHANGE ARE GENERALLY EASY TO REVERSE
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CHEMICAL CHANGE :
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1)CHEMICAL CHANGE WILL EFFECT BOTH PHYSICAL AND CHEMICAL PROPERTIES
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2)CHEMICAL CHANGES PRODUCE ENERGY GENERALLY IN THE FORM OF HEAT,,LIGHT OR SOUND
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3)CHEMICAL CHANGE PRODUCE NEW SUBSTANCE THE ATOMS REARRANGE MAD FORM NEW SUBSTANCE
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4)CHEMICAL CHANGES ARE EASILY REVERSIBLE WITHOUT AN ADDITIONAL CHEMICAL REACTION
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HOPE IT HELPS U ✌