Select the correct answer

Which of the following statements holds true for a chemical change?

A. In a chemical change, no new substance is formed.

B.

In a chemical change, a substance changes its phase.

C. In a chemical change, the molecular structure of a substance changes.

D

in a chemical change, one substance dissolves into another.

Question

Chemistry

Latte

31 October, 08:12

Select the correct answer

Which of the following statements holds true for a chemical change?

A. In a chemical change, no new substance is formed.

B.

In a chemical change, a substance changes its phase.

C. In a chemical change, the molecular structure of a substance changes.

D

in a chemical change, one substance dissolves into another.

+4

Answers (1)

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Harley Blackburn · Answer 1

Answer: C.

In a chemical change, the molecular structure of a substance changes.

Explanation: In a chemical change when the molecular structure of a substance exhibits changes in a reaction then it corresponds to a new substance or a new substance is formed. An alter to the molecular structure of a substance makes it different to the other. Any form of phase change is not a chemical reaction but only a physical change so the remaining choices are wrong.