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.
Enrolling in a Humana plan online. 1  Go to 2016 Medicare Plans. 2  Type your ZIP code in the Enter ZIP code field. 3  Click Go.  Select your county, if necessary, then click 1  Go. View the plans in your area.  Click Enroll Now next to the plan that meets your needs.