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Lab 33 – Endothermic reaction

Simple procedure

• In a test tube, place a small amount of NH₄Cl.
• Allow students to touch the tube to confirm ambient conditions.
• Add a small amount of distilled water.
• The reaction is endothermic and happens very quick.
• Allow students to touch the resulting (cold) test tube glass.
• Ammonium Chloride (purchase)

SDS sheet