This change is possible.
Any substance that cannot be broken down into simpler substances is an?
If an unknown substance cannot be broken down into simpler substances it is made of one kind of atom and an element.
Its Elements
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
Elements
All of the elements of the periodic table cannot be broken down into simpler substances.
A substance that cannot be broken down is a pure substance
Not: atoms The answer is an element
cannot be broken down into simpler substances by chemical means
No. Elements cannot be broken down into simpler substances in a chemical reaction.
an element is a substance that cannot be broken down into a simpler form by chemical means
An element.