Citric acid is a compound found naturally in citrus fruits like lemons, limes, and oranges. It's what gives these fruits their distinct acidic flavors. The natural form of citric acid is an ...

The activity works well with anhydrous calcium chloride. Keep the container tightly closed to prevent the material from absorbing moisture from the air. Universal indicator solution is also available ...

nitric acid and sodium hydroxide, and anhydrous copper sulfate and water. Endothermic reactions include solid citric acid and sodium hydrogencarbonate, and dissolving ammonium nitrate in water.