Sodium sulfate, Na2SO4, and barium chloride, BaCl2, are soluble compounds that f

Question

Sodium sulfate, Na2SO4, and barium chloride, BaCl2, are soluble compounds that form clear solutions. However, when aqueous solutions of sodium sulfate and barium chloride are mixed together, a white solid (a precipitate) forms

Part 1: Using the molecular representations in the image, which of the two solutions is being poured out of the graduated cylinder, sodium sulfate or barium chloride?

Part 2: Which cation and which anion combine to form the precipitate?

Choose one:

Barium, Ba2+, and sulfate, SO42–

Barium, Ba2+, and chloride, Cl–

Sodium, Na+, and sulfate, SO42–

Sodium, Na+, and chloride, Cl–

Part 3:Write a balanced chemical equation that only includes the particles that change their physical states during the precipitation reaction (this is known as a net ionic equation). Be sure to include state labels (s, l, g, aq) for all reactants and products in your equation.

Explanation / Answer

part 1) barium chloride

part 2) Barium, Ba2+, and sulfate, SO42–

part 3) net ionic equation : Ba2+ (aq) + SO42- (aq) ------------------> BaSO4 (s)

explanation:

total equation

BaCl2 + Na2SO4 --------------------> BaSO4 + 2 NaCl

here Na+ and Cl- are spectator ions doesnot participate in the net reaction

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