Question

What is chemical change​

Answer 1

Answer:

chemical change is a change in which new sustance is formed and it brings Change in it's chemical property..

for eg. burning of paper

Answer 2

$\underline{\underline{\pink{\huge\sf Answer}}}$

»» We say a chemical change has taken place when two or more things react and the final product obtained is different from the reactant i.e new substance is formed

»» i.e there is a change in the atomic composition of the reactant

»» Here unlike physical change the final product cannot be reversed and changed into the initial reactant i.e it is an irreversible reaction

»» Example - Cooking, burning of candle, burning of wood etc...

━━━━━━━━━━━━━━━━

$\large\sf\red{Additional \ Information}$

$\star\:\sf Physical \ Change \:\star$

»» In a Physical Change no new substance is formed there is just a change in state

»» i.e there is no change in its atomic composition

»» Here the new product if needed can be bought back to same state of the reactants i.e is a new substance is formed

»» Eg - Evaporation, Condensation, solidification etc...

━━━━━━━━━━━━━━━━━━━━━━