What should be done after determining the hazards associated with materials before a chemical reaction?

After identifying the hazards associated with materials before conducting a chemical reaction, it is essential to evaluate equipment hazards. This step ensures that the equipment being used is appropriate for the reaction and can safely handle the materials involved. Understanding equipment hazards includes assessing whether the apparatus can withstand the conditions of the reaction, such as temperature, pressure, and the potential for chemical interactions.

By evaluating the equipment, you can identify any necessary safety measures, such as the need for protective barriers, proper ventilation, or specific containment devices. This process minimizes the risk of accidents and ensures that the lab environment remains safe for all personnel involved.

In contrast, proceeding directly to the reaction without such evaluations could lead to unforeseen accidents or hazardous situations. Reviewing material costs and obtaining additional materials are not relevant steps in ensuring safety and effective laboratory practices prior to conducting a chemical reaction.