1. For this experiment the calorimeter was constructed from foam cups. What would the result be if the calorimeter was instead made from a glass beaker? Would more heat or less heat be lost by the reaction? Explain your reasoning.

2. When CaCl₂ (s) was added to water was heat given off or absorbed? Is this an exothermic or endothermic reaction. Explain how you know.

3. When NH₄Cl (s) was added to water was heat given off or absorbed? Is this an exothermic or endothermic reaction. Explain how you know.