Question

what is chemical changes

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Answer 1

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.

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Answer 2

Answer:

The changes in which new substance are formed,are called chemical changes. .

Explanation:

Ex:Burning of magnesium ribbon,Rusting of iron,Formation of curd from milk,Cooking of food etc.