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- NaNO3, AlCl3, BaCl2, NaOH, KOH
- BaCl2, NaOH, FeCl3, Fe(NO3)3, KCl
- NaHCO3, BaCl2, Na2S, Na2CO3, KOH
- Na2S, Cu(OH)2, Na2CO3, FeCl2, NaNO3