Answers

2015-10-01T18:57:30+05:30
cooking rice is a chemical change because during this process one substance reacts with another to undergo a change in chemical composition .chemical changes brings change in the chemical properties of rice and we get a new substance that is cooked rice!!
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2015-10-01T19:11:58+05:30

its a chemical reaction because a new substance i.e. cooked rice and even this process cant be reversible. hence it satisfies all the customs of a chemical reaction
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