Three numbered test tubes contain solutions of the following salts: potassium chloride, sodium sulfate, potassium
| December 7, 2020 | education
Three numbered test tubes contain solutions of the following salts: potassium chloride, sodium sulfate, potassium nitrate. After addition of barium nitrate solution to each of the tubes, precipitation was observed in the third tube. Indicate which of the substances was in this test tube. Explain the reaction equation.
Barium reacted with only one salt from this list, since it did not react with others
Reacted with sodium sulfate and got a sign of reaction: precipitation
Ba (NO3) 2 + Na2SO4 = 2NaNO3 + BaSO4
Ba (2 +) + SO4 (2 -) = BaSO4
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