Answer:
Part 1: W = 116 Y = 163
Part 2: Since 232 is the mailing point of 2 kg then you would divide 232 by 2 to get the melting point for 1 kg, the same with Y.
It has to be a metal, it can't be anything else.
<span>NH4+ and NO3- because barium phosphate is insoluble </span>
Theres 3 on the left side and 2 on the right side. 5 in total :)