EVERYDAY SCIENCE

Detailed explanation-1: -Those substances which are made up of the same kind of atoms are known as molecules of elements. For example, (hydrogen gas). While those substances which are formed by different types of elements are known as molecules of a compound. Thus the atoms of a different kind combine to form molecules of a compound.

Detailed explanation-2: -Compound : A substance made of two or more elements that are chemically combined in fixed amounts.

Detailed explanation-3: -A compound contains atoms of different elements chemically combined together in a fixed ratio. A mixture is a combination of two or more substances where there is no chemical combination or reaction. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.

Detailed explanation-4: -Atoms of different kinds combine to form molecules of a compound.