Question

characteristics of chemicals reactions with define​

Answer 1

chemical changes form new object...

chemical change can not be reversible....

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Answer 2

Answer:

Chemical reaction :-

Chemical reaction is a change in which a substance changes its chemical composition .

Characteristics of a chemical reaction :-

• It is permanent .
• it is irreversible .
• one or more new substances are formed .
• The composition of a substance changes during a chemical change .
• there is a change of energy .

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