Chem 127 Study guides, Class notes & Summaries

chem 127 midterm 1 cal poly Questions & answers

chemistry correct answer: the science that tries to understand how matter behaves by studying how atoms and molecules behave scientific method correct answer: ways of learning that emphasizes observation and experimentation (self correcting) observation correct answer: we go out in nature and ask questions we measure or observe some aspect of nature hypothesis correct answer: tentative interpretation of an observation law correct answer: summarizes a large number of observations...

chem 127 midterm 1 cal poly Questions & answers

CHEM 2100L/2211L Lab Final | with a complete study set Experiment #1 Re-crystallization - What is the specialized melting point technique that is used to determine the identity of an unknown compound? - Comparative Melting Point -- this is when you make a 50:50 mixture of the unknown compound and the substance you think it is based off given melting point values What are the five steps of re-crystallization? - 1. Choose an appropriate solvent 2. Dissolve the impure mixture in the s...

NFPA 10 Exam 127 Questions with Verified Answers NFPA 10 - CORRECT ANSWER Standard for Portable Fire Extinguishers NFPA 17 - CORRECT ANSWER Standard for Dry Chemical Extinguishing Systems NFPA 17a - CORRECT ANSWER Standard for Wet Chemical Extinguishing Systems Portable fire extinguishers - CORRECT ANSWER The first line of defense to cope with fires of limited size Authority Having Jurisdiction (AHJ) - CORRECT ANSWER An organization, office, or individual responsible for enforcing...

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - ANSWER A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outli...

Table of Contents ABOUT TJC 9 Board of Trustees................................................................................ 9 Accreditation........................................................................................ 9 TJC Mission Statement...................................................................... 9 TJC Vision Statement......................................................................... 9 TJC Civility Statement...................................................

1. What does OSHA stand for? Occupational Safety and Health Administration 2. was created by the US department of labor to regulate and enforce safety and health standards to protect employees in the work place... 3. This regulates employee exposure to potentially toxic substances and inform employees about the possible hazards of materials used in the work place? 4. This requires that chemical manufacturers and im- porters assess and communicate the potential haz- ards associated with their ...