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Based on light bulbs and electric currents, how do we know a solution has ions?
- If the light bulb has a light, it has ions.
- If the light bulb does not turn on, it has no or very few ions and is deionized.
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What are the categories for the amount of electrolytes in a solution?
- Strong electrolyte: completely dissociates into ions
- Weak electrolyte: only some dissociate
- No electrolytes
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1st Solubility Rule
Li+ Na+ K+ Rb+ Cs+ and NH4+ salts are soluble
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2nd solubility rule
- NO3-
- C2H3O2-
- ClO4- salts are soluble
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3rd Solubility Rule
Ag+, Pb2+, Hg22+ salts are insoluble.
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4th Solubility Rule
Cl-, Br-, and I- salts are soluble.
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5th Solubility Rule
CO32-, S2-, O2-, OH-, PO43-, and Cr2O42- are insoluble except for Ba(OH)2 and Sr(OH)2.
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6th Solubility Rule
SO42- is soluble is except for CaSO4, BaSO4, SrSO4
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