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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.

User Vasudha
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2 Answers

4 votes

The correct answer is D

User Geertjanvdk
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6 votes

Answer:

It was frozen.

Step-by-step explanation:

A substance may undergo any chemical change in its nature in all the given cases except when it is frozen.

A) during heating there is chances that it undergoes decomposition . Like if calcium carbonate is heated it converts to calcium oxide and carbon dioxide.

B) When a compound is hit with a hammer there is chance of its chemical decomposition.

C) If a compound is placed in a salt solution it may react with the salt or water.

D) However freezing is purely a physical process, where contact with any other compound or any chance of chemical decomposition is not possible.

User Empz
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