Question

carbon
what is the study of carbon - containing compounds called?
what other elements bond with carbon to make up macromolecules?

Explanation:

The study of carbon - containing compounds is organic chemistry. Common elements that bond with carbon to form macromolecules include hydrogen, oxygen, nitrogen, phosphorus, and sulfur.

Answer:

The study of carbon - containing compounds is called organic chemistry.
Common elements that bond with carbon to make up macromolecules are hydrogen, oxygen, nitrogen, phosphorus, sulfur.