Question

difference between a substance, an element and a compound

Answer 1

a substances is a mixture of many things.
an element is a smallest piece of a substance which cannot be broken down into simpler substance.
a compound is a mixture of two or more elements in fixed ratio.

Answer 2

Answer:

Substance : - A substance is a single pure form of matter.

It has a specific composition and specific properties.

Element : - Element is a substance which is made up of similar kinds of atom. example:-the element hydrogen is made from atoms containing a single proton and a single electron.

Compound :- A compound is a chemical substance consists of many identical molecules composed of atoms from more than one element join by chemical bonds.

Elements combine to form chemical compounds