determine the element and compounds

Answer:
Element: An element is a substance that is made entirely of one type of atom.
For example : the element zinc is made up of only zinc atoms.
Molecules : Molecules are a group of atoms covalently bonded to each other.
The molecule can consist of atoms of the same element, or atoms of different elements. e.g. H
2
Compound : A compound is a substance that is made up of two or more different elements that are chemically joined, such as NH
3
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Explanation: