Thank you but Im doing history and I turned it in just waiting for my grades!
Answer:
H2 is Molecular hydrogen. It is a molecule of hydrogen that consists of two hydrogen atoms bonded together by one single bond (also known as a sigma bond). A subscript also denotes how many of a particular atom is in a molecule, thus H2 has two hydrogens. 2H, on the other hand, denotes two moles of elemental hydrogen.
1. Health and Human services
2. Department of defense
3. Department of agriculture
4. Treasury department
5. Department of education