Question

Which of these will lead to the formation of a new substance

Answer 1

Answer:

Chemical changes undergo the formation of new substances. ... They form new substances. For example.. the chemical Changes involve digestion of food, Rusting of Iron, etc. Hence ,This chemical changes causes the substances to change into new substances.

Explanation:

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Answer 2

Explanation:

The Combination Reaction will lead to the formation of new substance.