Question

Which term below represents a pure substance that can be separated chemically, but cannot be separated physically, that is made up of two or more different atoms? molecule, chemical bond, mixture, element

Answer 1

Answer : Molecules.

Explanation : Elements are the class of pure substances that cannot be physically separated; but they are made up of the same atoms of the same elements. When two or more elements are combined chemically with a chemical bond they become physically inseparable; which is called as a Molecule. Therefore, the term which represents represents a pure substance that can be separated chemically, but cannot be separated physically, that is made up of two or more different atoms is a molecule.

A compound is made up many different molecules. The main difference between the compound and the molecule is that a compound must have at least two different elements. So, it can be said that a compound is a type of molecule.

Mixtures are made up of different compounds which can be physically separated.

Answer 2

elements are pure substances that cannot be separated physically

molecule is made up of two or more different atoms

mixture can be separated chemically