A chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved. chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved.
Humana Medical Plan of Pennsylvania, Inc. Medicare Advantage Plus Prescription Drug Plans. The following Humana Medical Plan of Pennsylvania, Inc. plans offer Medicare Advantage and Part D coverage to Pennsylvania residents. Medicare Advantage plans, also known as Medicare Part C, are alternatives to original Medicare.
Humana's Medicare Advantage plans deliver more than drug coverage. When you enroll in a Humana Medicare Advantage plan that includes prescription drug coverage, you gain access to guidance, support, and convenience through things like: 1  My Humana â your secure Web page that offers online resources to help you make informed healthcare decisions. 2  Take a tour now.