Question

what is used to change chemical changes?​

Answer 1

occur when a substance combine with another form a new substance. Eg. rx. b/w Na &H2O to produce NaOH + H2

Answer 2

꧁AnsWer꧂

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•A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction.

•Examples are burning of any substance, rusting of iron.

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