Question

how could you test for an endothermic reaction and tell that one has occurred? write your response

Explanation:

To test for an endothermic reaction, use a thermometer to measure the temperature of the reaction system (e.g., a beaker with reactants). In an endothermic reaction, the system absorbs heat from the surroundings, so the thermometer will show a decrease in temperature (e.g., mixing ammonium nitrate and water causes a temperature drop). This temperature decrease indicates the reaction is endothermic (as it absorbs heat, cooling the surroundings).

Answer:

To test for an endothermic reaction, measure the temperature of the reaction system (e.g., with a thermometer). An endothermic reaction occurs if the temperature of the system (or surroundings, like the reaction vessel/liquid) decreases (e.g., mixing ammonium nitrate and water cools the mixture). The temperature drop shows the reaction absorbs heat from the surroundings, confirming it is endothermic.