When gathering glassware and equipment for an experiment, you should:

• A. Use dirty glassware if you are short on time.
• B. Select any available glassware without inspecting it.
• C. Check for cracks or defects in all glassware before use.
• D. Mix different types of chemicals in the glassware before reading the procedure.

Answer: (C)

Verified step by step guidance

1. Understand the importance of safety and accuracy in a chemistry experiment, which starts with using proper and intact equipment.
2. Recognize that using dirty or damaged glassware can lead to contamination, inaccurate results, or even dangerous reactions.
3. Always inspect glassware carefully for any cracks, chips, or defects before use to ensure it is safe and suitable for the experiment.
4. Avoid mixing chemicals in glassware before reading the procedure, as this can cause unintended reactions or hazards.
5. Select clean, defect-free glassware as specified in the experimental procedure to maintain safety and reliability throughout the experiment.