Question

explain molecules and irons

Answer 1

Answer:

ions are chemical combination of only one type of element ex h2 or c2

molecules are chemical combination of 2 or more element but in fix proprotion ex h2o ,co2

Explanation:

Answer 2

A pure substance consists of a single element or compound. Iron is formed only of iron (Fe) atoms; table salt is formed only by sodium chloride (NaCl) molecules. A mixture, however, is made up of different compounds and/or elements.