Question

please answer the question​

Answer 1

A chemical change involves a formation of a new product by the method of decomposition reaction. During a chemical change, the mass and number of atoms is conserved, but the number of molecules is not always the sea. Chemical changes require some large amount of energy

In a chemical change,the reactants rearrange themselves in order to form one or more new products having different characteristics than the reactants. When a new substance having different characteristics is formed, this type of change is known or is called as a chemical change.

Examples of Chemical Changes

1. Burning wood.
2. Mixing acid and base.
3. Cooking an egg.
4. Baking a cake.
5. Rusting of iron.

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Answer 2

Option D is correct answer

D. any or all of the above

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