The reaction between hydrogen peroxide H2O2 and potassium iodide KI is an exothermic reaction, which means it releases heat. The reaction is also known as the "elephant toothpaste" reaction due to the rapid production of a large amount of foam. The reaction rate and safety of this reaction are affected by temperature in the following ways:1. Reaction rate: As the temperature increases, the reaction rate also increases. This is because the molecules have more kinetic energy at higher temperatures, which leads to more frequent and effective collisions between the reactant molecules. According to the Arrhenius equation, the reaction rate constant k is directly proportional to the exponential of the negative activation energy Ea divided by the product of the gas constant R and temperature T . Therefore, a higher temperature results in a larger reaction rate constant and a faster reaction.2. Safety: As the reaction rate increases with temperature, the reaction becomes more vigorous and potentially less safe. The rapid production of foam and release of heat can cause the reaction mixture to overflow from the container, which may pose a risk of burns or chemical exposure. Additionally, the increased heat can cause the hydrogen peroxide to decompose more quickly, releasing oxygen gas and potentially causing pressure buildup in a closed container, which could lead to an explosion.To ensure the safety of this reaction, it is essential to perform it in a well-ventilated area, use appropriate personal protective equipment such as gloves, goggles, and a lab coat , and use a container with enough capacity to accommodate the foam produced. It is also crucial to monitor the temperature of the reaction and avoid using highly concentrated hydrogen peroxide or potassium iodide solutions, as this can increase the risk of an uncontrolled reaction.