A substance that can't be chemically broken down into simpler substances is considered to be
A)a homogeneous mixture.
B)an element.
C)a heterogeneous mixture.
D)a compound.
E)water.

Question

Quizplus · Accepted Answer

An element is a substance that cannot be broken down into simpler substances by chemical means. It is made up of only one type of atom. Examples of elements include hydrogen, oxygen, and carbon.

A Substance That Can't Be Chemically Broken Down into Simpler