Classify the following compounds and ions as strong acid, weak acid, strong base, weak base, or neutral. For each write the reaction(s) that justify your decision. If a substance is amphiprotic, show both reactions.
CaSO3 HNO2 CCl4 NH4 +1 H2S H2 HPO4-2 Sr(OH)2
SO3 KClO2 H2O HI K2O FeSO4 CS2 HNO3