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.
HumanaChoice(PPO). Freedom to choose, ways to save with a PPO plan. HumanaChoice(PPO) Â® is a Medicare Advantage Preferred Provider Organization (PPO) plan that gives you freedom to choose which doctors, specialists and hospitals you visit. You can help lower your costs when you use network providers.umanaChoice (PPO) plans give you all the benefits of Original Medicare and more, including: 1  Prescription drug coverage (some plans do not include drug coverage). 2  Emergency coverage when you travel outside the U.S.