Question

2. What is chemical change ? Give 4 examples​

Answer 1

Answer:

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.

Explanation:

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Answer 2

Answer:

A change in which one or more new substance are formed is called a chemical change. Chemical change is also called as chemical reactions . Example: photosynthesis, burning of coal, digestion of food and spoiling of food.

Explanation:

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