Chem 117 Study guides, Study notes & Summaries

Which of the following chemical symbols corresponds to bromine? a) Ba b) Bo c) Br d) Be e) B - C Which of the following is an example of a chemical change? a) deposition b) evaporation c) sublimation d) burning in air e) freezing - D

All chemical waste generated during the lab should be placed in the appropriate waste container. - True Hot glass and cold glass look the same - Tue Which of the following is proper response to getting chemical in your eyes? - Use the eye wash station to rinse the eyes Which are examples of poor lab techniques? - -Pipetting by mouth -Filling a 10 mL graduated cylinder directly from a large reagent bottle -Shaking down a lab thermometer before using Tank tops are not considered proper att...

what is the term for a family of unsaturated hydrocarbon compounds having a triple bond? - alkynes What is the general term for a hydrocarbon that contains only single bonds? - saturated hydrocarbon How many C atoms are in one molecule of the hydrocarbon, decane? - 10 Which of the following molecular formulas corresponds to octene? - C8H16 What is the common name for HC=CH? - acetylene What is the term for compounds with the same molecular formula, but with different structural formulas?...

Phase - a homogeneous part of the system in contact with other parts of the system but separated from them by a well-defined boundary Intermolecular forces - forces of attraction between molecules Intramolecular forces - bonding forces that hold the atoms of a molecule together Van der Waals forces - the two weakest intermolecular attractions- dispersion interactions and dipole forces Dipole-dipole forces - forces of attraction between polar molecules Ion-dipole forces - attractiv...

what is the term for a family of unsaturated hydrocarbon compounds having a triple bond? - alkynes What is the general term for a hydrocarbon that contains only single bonds? - saturated hydrocarbon How many C atoms are in one molecule of the hydrocarbon, decane? - 10 Which of the following molecular formulas corresponds to octene? - C8H16 What is the common name for HC=CH? - acetylene What is the term for compounds with the same molecular formula, but with different structural formulas?...

CHEM 1212: Final Exam Questions and Answers Colligative Properties - CORRECT ANSWER-properties of solution, such as freezing point and boiling point, which depend on the concentration of solute particles dissolved in the solvent Freezing Point Depression Equation - CORRECT ANSWERMolality - CORRECT ANSWER-moles of solute per kg of solvent Molality= - CORRECT ANSWERWhat is the definition of colligative properties? (Antifreeze) - CORRECT ANSWERproperties of a solution that depend on the...

Which of the following is proper response to getting chemicals in your eyes? - use the eyewash station Tank tops are not considered proper laboratory attire - True I do not have to report burns from hot glassware to my instructor. - False At the end of each experiment, all chemical waste can be poured into the sink. - False After finishing an experiment, goggles can be removed regardless of whether or not others in the lab are still doing the experiment. - False I should avoid touching ch...

IB Chem VSEPR theory HL Questions with complete solution 2023/20242 electron domains - correct answer linear 180 CO₂ 3 electron domains (all bonded) - correct answer trigonal planar 120° BF₃ greater repulsion: non-bonded or bonded pairs - correct answer non-bonded 3 electron domains (1 unbonded) - correct answer bent 117-118° NO₂ Angle removed by lone pair - correct answer 2-2.5°

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...