Write the formula and name for the compounds formed by the following positive and negative ions. Remember to use a Roman Numeral indicating the positive charge if the metal cation can have more than one possible charge. (Read the Background Information in the Instructions to see how to format answers and read the notes below) (a) Zn2+ and NO3 formula name (all lower case) (b) Ag+and CO32 formula name (c) Pb2+ and SO42 formula name