I NEED ANSWER QUICK
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.

Question

annabellalind annabellalind

19-01-2021
Chemistry

contestada

I NEED ANSWER QUICK
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.

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quasarJose quasarJose · Answer 1 · 2021-01-19T07:35:28+01:00

Answer:

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

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.