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A substance did not change its chemical nature in a reaction. Which most likely describes the reaction?

A. It was heated.
B. It was hit with a hammer.
C. It was placed in a salt solution.
D. It was frozen.

Respuesta :

osprey2015

B. It was hit with a hammer.

Answer: Option (D) is the correct answer.

Explanation:

  • A reaction in which there occurs no change in chemical composition of a substance is known as a physical change or physical reaction.

For example, freezing of water is a physical change because only change in state is taking place.

A physical change never leads to the formation of a new substance.

  • On the other hand, a change which brings change in chemical composition of a substance is known as a chemical change.

For example, [tex]NaCl + H_{2}O \rightarrow NaOH + HCl[/tex]

A chemical change will always lead to the formation of a new compound.

Thus, we can conclude that it was frozen most likely describes the reaction.

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