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2. Pre-IB Info: Naming Compounds and Writing Formulas . Inorganic Ionic CompoundsNaming: Ionic compounds consist of a positive ion (metal or NH4 (ammonium)) and a negative ion (nonmetal or polyatomic ion). Identify the two ions and name them.CaSO4: Calcium sulfateNa2S: Sodium sulfideFe(NO3)3
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