Note that there are now several types of treatments and medical providers for which Medicare Part B pays 100% of the approved charges rather than the usual 80%. These categories of care include home health care, clinical laboratory services, and flu and pneumonia vaccines.
A giant covalent structure is a three dimensional structure of atoms held together (obviously) by Covalent bonds. These atoms are often all the same-so the elements Silicon and Carbon in the allotropes Diamond and Graphite are Giant Covalent structures.
The best answer I can come up with is that covalent molecular are held together by covalent bonds AND intermolecular bonds whereas covalent networks are only held together by â¦ covalent bonds. This means that the intermolecular bonds in covalent molecular are easy to break which is why it has a low boiling point. Covalent networks are all covalently bonded which means they are stronger and have a higher boiling point. I hope that's right because i have a test on this tomorrow. Sorry if it is wrong.