The document discusses several safety concerns that should be identified in an image showing a laboratory setting. It then asks what elements and gas would be produced from the reaction of sodium bicarbonate and citric acid. Finally, it asks questions about the properties of air and gases, such as whether air takes up space and is considered matter.
1. What’s wrong? Identify 9 different safety concerns shown in the picture below. Image: http://morrisonlabs.com/lab_safety.htm
2. The answers are … Image: http://morrisonlabs.com/lab_safety.htm Always wear safety goggles during a lab. Don’t leave materials laying on the floor. Clean up spills immediately Don’t heat closed containers. Keep your lab area neat and clean. Unplug equipment when not in use. Don’t place lab materials near the edge of the table. Keep papers and other flammable objects away from flames. Don’t smell directly from a container - WAFT.
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4. What gas do you think is in the bubbles that form when NaHCO 3 and C 6 H 8 0 7 react?