what is the difference between the molecules of elements and compounds

1.	what is the difference between the molecules of elements and compounds?
Answer» 1. Elements contain only one kind of atoms in the free state or combined state. 2. An element cannot be decomposed into simple substances by any chemical reaction or simple physical process, e.g. copper, iron, oxygen. 3. A compound is produced by a chemical reaction of two or more elements. 4. The constituents of a compound can be separated by a chemical process, e.g. salt, water and sugar.

what is the difference between the molecules of elements and compounds?

Answer»

1. Elements contain only one kind of atoms in the free state or combined state.

2. An element cannot be decomposed into simple substances by any chemical reaction or simple physical process, e.g. copper, iron, oxygen.

3. A compound is produced by a chemical reaction of two or more elements.

4. The constituents of a compound can be separated by a chemical process, e.g. salt, water and sugar.