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

In a chemical change, no new substance is formed.

In a chemical change, a substance changes its phase.

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

In a chemical change, one substance dissolves into another.

Question

Which of the following statements holds true for a chemical change?

In a chemical change, no new substance is formed.

In a chemical change, a substance changes its phase.

In a chemical change, the molecular structure of a substance changes.

In a chemical change, one substance dissolves into another.

hhmorris98 · Answer

Which one do you think it is?

cathyangs · Answer

The 3rd choice, by logic and process of elimination, is the only true one. The other 3 choices all describe physical changes.

whpalmer4 · Answer

A chemical change involves making or breaking chemical bonds; doing so necessarily changes the molecular structure.

sasquat · Answer

It's definitely the third one since it talks about change at a MOLECULAR level, therefore it would be a chemical change.