1.

Whathappens duringa chemicalchange?

Answer»

SOLUTION :(i) Ina chemicalreactionreaction, the atomsofthe reactingmoleculesor ELEMENTS arerarrangedtoformnewmolecules .
(ii)Oldchemicalbondsbetweenatomsarebroken and newchemicalbondsare formed .
(III )Bondbreaking absorbsenergywhereasbondformationreleasesenergy .


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