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An experiment on double displacement reactions, focusing on the reaction between sodium sulfate and barium chloride. The experiment aims to classify the reaction type and observe the formation of barium sulfate precipitates. The procedure involves mixing the solutions, observing the precipitate formation, and testing its solubility in hydrochloric acid. The experiment concludes that the reaction is a double displacement reaction, where sulfate ions are displaced by chloride ions, resulting in the formation of barium sulfate and sodium chloride. This experiment provides a practical understanding of double displacement reactions and the formation of precipitates, enhancing students' comprehension of chemical reactions and their applications in chemistry. (438 characters)
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Name Chemical Formula Hazard Sodium Sulfate Na 2 SO 4 May case eye and skin irritation. Causes nausea, vomiting and diarrhea. Barium chloride BaCl 2 Irritates the eyes, skin, and mucous membranes.
Barium chloride may affect the kidneys, cardiovascular system, and central nervous system. Hydrogen chloride HCl Causes skin irritation and serious eye damage. Causes respiratory damage if inhaled.
The following double displacement chemical reaction was demonstrated in this experiment: Na 2 SO 4 (aq) + BaCl 2 (aq) → BaSO 4 + 2NaCl (^) (aq)