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→Sulphate Test
#Add the [[Barium Chloride]] [[solution]] to the [[Test Tube|test tube]].
#If a [[Sulphate]] is present:
<chemmath>Na2SO4(aq) + BaCl2(aq) -> \rightarrow 2NaCl(aq) + BaSO4(s)</chemmath>
: a white [[precipitate]] is formed.