A net ionic equation shows all the ions present in a solution when a chemical reaction occurs O True â False ot b A net ionic equation must be balanced by both mass and charge. O True â False CAs a generalization, most carbonate (CO,) salts are insoluble in water. âTrue pt O False or Ammonium phosphate, (NH)PO, is insoluble in water. or True â False e Sodium hydroxide, NaOH. is soluble in water. True False