Put water and ice in a beaker. Put water in the other beaker. Heat the water on the hot plate, if desired, or use the kettle. Mount the gas thermometer on the lab stand using the 90-degree clamp and 3 ...

2. The beaker now contains sodium chloride and water. The temperature on the thermometer has risen, meaning it is an exothermic reaction. Respiration is an exothermic reaction because it releases ...