Question

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Which best describes the difference between physical and chemical changes?


Physical changes only change the size or shape, but chemical changes change the molecular structure and create a new substance.


Physical are always visible changes and chemical changes are never visible.

Chemical changes only change the size or shape, but physical changes change the molecular structure and create a new substance


Chemical are always visible changes and Physical changes are never visible.

Answer 1

Physical changes only change the size or shape, but chemical changes change the molecular structure and create a new substance.

Step-by-step explanation:

The first option provides are more fitting and succinct definition and shows the difference between physical and chemical changes.

In addition; a physical change is one that alters the physical properties of matter particularly the form and state. In many cases, the change is easily reversible

A chemical change is one in which a new kind of matter is formed. It is always accompanied by energy changes. This process is not easily reversible. Examples are combustion and rusting of iron.