Sodium sulfate Na2SO4 and barium chloride BaCl2 are soluble

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.

Solution

part 1) barium chloride

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

part 3) net ionic equation : Ba²⁺ (aq) + SO₄^2- (aq) ------------------> BaSO₄ (s)

explanation:

total equation

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

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