Lab equipment

1. Why is it important to have a fully equipped chemistry laboratory, and what role does each piece of equipment play in ensuring safety during experiments?

• To maximize storage space for chemicals and reagents

• To provide the necessary tools for accurate measurements, chemical reactions, and safe handling of substances

• To reduce the number of experiments that can be performed

• To minimize the costs of conducting experiments

2. When handling hazardous chemicals, which safety procedures should be followed to minimize the risk of contamination, injury, or fire?

• Always read chemical labels, use appropriate protective equipment, and dispose of chemicals according to established procedures

• Store chemicals in open containers for easy access
  

• Mix chemicals indiscriminately to test their reactivity

• Skip using PPE when you feel the chemicals are not dangerous

3. How should an experiment be conducted safely if the lab equipment is improperly maintained or missing necessary components?

• Proceed with the experiment anyway and try to improvise
  

• Wait until the equipment arrives or is fixed

• Substitute missing components with household items

• Seek guidance from the teacher and report any missing or faulty equipment before beginning the experiment

4. In a chemistry lab, what is the purpose of posting safety rules, warning signs, and periodic tables visibly around the room?

• To provide essential safety guidelines and ensure that everyone can reference them quickly in case of an emergency

• To decorate the lab with useful charts

• To remind students of chemical properties for faster experimentation
  

• To increase the number of instructions for students to follow

5. What should be done with chemicals that have expired or are no longer needed for experiments, and why is proper disposal important?

• Leave them on the counter for future use
  

• Return them to the original suppliers for disposal

• Follow designated disposal procedures to avoid contamination, toxic exposure, or environmental harm

• Dispose of them in the regular trash to save time

6. What is the role of a fume hood in protecting laboratory personnel from potentially dangerous chemical vapors, and how should it be used effectively?

• A fume hood is used only for storage, not for conducting experiments
  

• It is only used during extreme emergencies, such as fires

• Fume hoods are optional and only needed when chemicals are volatile

• A fume hood captures and expels harmful vapors and fumes, reducing exposure to toxic substances

7. In a chemistry lab, what are the consequences of not following safety protocols, such as improperly storing chemicals or not using the correct PPE?

• 
  Serious health risks, environmental hazards, and potential accidents leading to injuries or contamination

• Only minor fines are imposed for non-compliance

• Minor accidents that can be ignored as part of the learning experience

• There are no serious consequences as long as students are careful

8. When working in a lab with volatile chemicals, why is it important to ensure that workstations are uncluttered and organized?

• To prevent distractions and create a clean environment
  

• To minimize the risk of accidental chemical reactions, spills, or physical hazards

• To make sure all chemicals are easy to find

• To allow for faster experiments

9. Why should students avoid wearing contact lenses during chemistry experiments, and how does wearing protective glasses differ in terms of safety?

• Contact lenses restrict vision, while glasses protect from minor chemical splashes
  

• Contact lenses are comfortable but inconvenient for long hours, while glasses block out harmful UV rays

• Protective glasses are only necessary when working with acids, not other chemicals

• Contact lenses could trap harmful chemicals against the eye, whereas protective glasses create a barrier against chemical splashes or vapors

10. What is the primary purpose of keeping lab doors and windows closed during an experiment, and under what circumstances should they be opened?

• To keep the lab warm and comfortable for working
  

• To prevent accidental exposure to hazardous fumes and to contain chemical reactions

• To prevent distractions from external noises

• To ensure the lab stays dark when necessary for experiments