Question

Burning of Coal in air is a ___ 1. Physical change 2. Chemical change 3. reversible change 4. endothermic change​

Answer 1

• Chemical Change

Explanation:

• 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. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

Answer 2

Answer:

Burning of coal is a chemical change as the chemical composition of coal is changed.

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