Question

basic difference between physical change and chemical change

Answer 1

Physical change :- physical change is that in which no new substance is formed . Only physical properties of the substance change otherwise it remains same example cutting of paper
Chemical change:- chemical change is that in which one or more than onenew substances are formed in this both physical and chemical change can be changed e.g. burning of crackers

Answer 2

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Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.