Question

Q Why do we call 'rusting of iron' as a chemical change.​

Answer 1

Answer:

Rusting of iron is a chemical change because a new substance iron oxide is formed. The presence of oxygen and water or water vapour is essential for rusting. Rusting of iron is a continuous process which slowly eats up the iron objects and makes them useless.

Explanation:

Answer 2

Rusting of iron is a chemical change because a new substance iron oxide is formed. The presence of oxygen and water or water vapour is essential for rusting. Rusting of iron is a continuous process which slowly eats up the iron objects and makes them useless.

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Oxidation is a chemical process that combines iron (Fe) and oxygen (O) to form iron oxide. In the process the atoms are bonded together.  In this case, iron is the reducing agent, because it loses electrons.