From its chemical formula, Ca(NO3)2, you can tell that there are two nitrate ions for every calcium atom. Therefore the mole ratio of calcium to nitrate is 1:2. So one could say that the "nitrate...
Nitrate is a monovalent anion with formula NO3- , which is the conjugate base of Nitric acid HNO3
A salt of the nitric acid - containing the ion nitrate, NO-3.
Lipitor (the generic is atorvastatin) is a cholesterol medication.
There is no reaction between them