?please do submit different questions seperately
Lab Safety Quiz 1. W hat part of your body requires special protection in the laboratory?...
1. why does the upper segment of the NFPA symbol indicate? 2.Briefly describe the precautions to take when you mix chemicals in a test tube. 3. Briefly describe the proper technique for heating liquids in test tube to temperatures below 100°C 4. Briefly explain what you should do first if you burn a small area on your skin the laboratory.
can someone help me find this information? Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...