When K3PO4 is mixed with water, it does dissolve. a) How many potassium ions will form?
b) What is the charge on a potassium ion?
c) How many phosphate ions will form?
d) What is the charge of a phosphate ion?

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o