Answer:
elements-hydrogen and oxygen
compound-water
Explanation:
Common examples of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen. At present, 94 are natural elements whereas 24 are synthetic. Thus, a total of 118 elements have been identified so far.
Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. Common examples are water (H2O), salt (sodium chloride, NaCl), methane (CH4). ... A molecule is a group of atoms that are chemically joined together.
