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Sep30-07, 09:25 PM
P: 133
certain reagents like AgNO3, when added to a sample that has a halide ion in it like cl-, Br- or I-, it will always give a ppt (solid)

acids like HCl or H2SO4 can tell you if carbonate or sulfites are present because they will give off a gas (fizzing) - what is the reaction?

KOH can also give ppt, depending on what is in solution. there should be a solubility chart of ionic compounds somewhere in your text book. the things that make ppt or gases will have similar ions

ex hydroxides are mostly insoluble so a rxn of Fe3+ and KOH will give a red ppt (of what?)