CHEM 121L FINAL Exam With Correct Answers

CHEM 121L FINAL Exam With Correct Answers SAFETY IN THE LAB: 1. Splash proof safety goggles must be worn when working in the First Year Chemistry Laboratory because: (Select all that apply:) - The number of students working in the lab increases the chances of collision and subsequently chemical splashes - User inexperience increases the chance of splashes and chemical spills - They provide maximum protection from chemicals spilled or splashed in the eyes - They provide protection from flying objects such as broken shards of glass - Correct Answer All of these answers are correct: - The number of students working in the lab increases the chances of collision and subsequently chemical splashes - User inexperience increases the chance of splashes and chemical spills - They provide maximum protection from chemicals spilled or splashed in the eyes - They provide protection from flying objects such as broken shards of glass SAFETY IN THE LAB: 2. To prevent damage to glassware or injury caused by broken glass, which of the following guidelines should be followed? (Select all that apply) - Inspect glassware thoroughly for damage before each use. - Broken glassware should be thrown in the garbage pails in the first-year chemistry laboratory. - Learn the names of the glassware you will use so that you can be sure to use the correct item for each procedure. - Broken glassware can be safely cleaned up with a paper towel. - Correct Answer The following answers are correct: - Inspect glassware thoroughly for damage before each use. - Learn the names of the glassware you will use so that you can be sure to use the correct item for each procedure.