CH-902

Balancing equations

Chemistry · Secondary 3 · Medium · Balancing equations

Which ionic equation, with state symbols, correctly represents the precipitation of barium sulfate when aqueous barium nitrate is added to aqueous sodium sulfate?

Ba(NO $_3$ ) $_2$ (aq) + Na $_2$ SO $_4$ (aq) → BaSO $_4$ (s) + 2NaNO $_3$ (aq)
Ba $^{2+}$ (aq) + 2NO $_3^-$ (aq) → Ba(NO $_3$ ) $_2$ (s)
Ba $^{2+}$ (aq) + SO $_4^{2-}$ (aq) → BaSO $_4$ (s)
2Na $^+$ (aq) + SO $_4^{2-}$ (aq) → Na $_2$ SO $_4$ (s)

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