What should you pay close attention to before lighting a match in the lab?

Before lighting a match in the lab, it is crucial to pay close attention to flammable liquids and vapors. This is because most organic chemistry laboratories utilize various solvents and reagents that can easily ignite if exposed to an open flame, posing significant safety risks such as fires or explosions. By assessing the presence of flammable materials in the vicinity, you can ensure a safer working environment and avert dangerous accidents.

In laboratories, the presence of flammable substances often requires specific safety measures, including proper storage, use of fume hoods, and having appropriate fire extinguishers at hand. Prioritizing awareness of vapors and liquids that could catch fire emphasizes the importance of adhering to safety protocols when working with potentially hazardous materials.

While factors like equipment in the area, the color of chemicals, and the presence of other students are certainly important to consider in broader safety protocols within the lab, the immediate concern before lighting a match is primarily related to flammability and the potential for ignition.