What is the proper sequence for mixing acid and water?

The proper sequence for mixing acid and water is to pour acid into water. This method is crucial for safety due to the exothermic reaction that occurs when acids are mixed with water. When acid is added to water, it disperses and the system can absorb the heat generated from the reaction more effectively. This helps to minimize the risk of the mixture splattering or boiling, which can happen if water is added to acid.

Adding water to acid can lead to a rapid release of heat that can cause the mixture to splatter, potentially leading to serious injuries or damage. Therefore, always remember to follow the guideline of pouring acid into water to maintain safety during the mixing process. This practice is particularly important in laboratory settings or any environment where handling strong acids is necessary.