Unsymmetrical - Study guides, Class notes & Summaries

AQA A Level Chemistry: Year 1- Alkenes Already Passed What is an alkene? An unsaturated hydrocarbon What is an unsaturated hydrocarbon? A compound containing only carbon and hydrogen atoms and containing at least one carbon carbon double bond What are van der Waals forces? Relatively weak intermolecular forces caused by temporary dipole dipole interaction What is the general formula for an alkene? CnH2n How would you name an alkene given its displayed formula? Identify the longest carbon cha...

AQA A Level Chemistry: final exam Paper 2 Question and Answers What bonds does cracking break? C-C State the conditions for thermal cracking High pressure and high temperature State what thermal cracking produces A high percentage of alkenes, and a low percentage of alkanes State the conditions for catalytic cracking Slight pressure, high temperature and a zeolite catalyst State what catalytic cracking produces Motor fuels and aromatic hydrocarbons Explain economic reasons for crack...

What is an alkene and its general formula? It is an unsaturated hydrocarbon with a least one C=C bond. General formula is CnH2n What is a sigma bond? σ single covalent bond formed when two s orbitals overlap. High electron density What is a pi bond? sideways overlap of p orbitals that occur in a double or triple bond. Much weaker than sigma, low bond enthalpy and lower electrostatic attraction Is an alkane or an alkene more reactive? Alkene. contains both sigma and pi bonds with high ele...

A Level Chemistry 13.4 Electrophilic addition in alkenes addition of a hydrogen halide to an unsymmetrical alkene forms the ? product via the ? carbocation. - correct answers1. major 2. most stable How are carbocations classified? - correct answersBy the number of alkyl groups attached to the positively charged carbon atom. how is an alkyl group represented? - correct answersnormally represented by the symbol -R. in 1870 Markownikoon a Russain chemist stated... - correct answersthat...

Nerve conduction study Nerve conduction study - ANS -recording of evoked responses produced by electrically stimulating a nerve. -to see if the nerve is conducting an impulse slower than normal -If there is a decrease in conduction velocity (speed) then there will be an increase in latency (time). Clinical questions for NCS - ANS Are peripheral nerve fibers compromised? Are sensory fibers, motor fibers, autonomic fibers or all three involved? Where is the nerve le...

A Level Chemistry 13.4 Electrophilic addition in alkenes addition of a hydrogen halide to an unsymmetrical alkene forms the ? product via the ? carbocation. - correct answers1. major 2. most stable How are carbocations classified? - correct answersBy the number of alkyl groups attached to the positively charged carbon atom. how is an alkyl group represented? - correct answersnormally represented by the symbol -R. in 1870 Markownikoon a Russain chemist stated... - correct answersthat...

A Level Chemistry 13.4 Electrophilic addition in alkenes addition of a hydrogen halide to an unsymmetrical alkene forms the ? product via the ? carbocation. - correct answers1. major 2. most stable How are carbocations classified? - correct answersBy the number of alkyl groups attached to the positively charged carbon atom. how is an alkyl group represented? - correct answersnormally represented by the symbol -R. in 1870 Markownikoon a Russain chemist stated... - correct answersthat...

4 basic food molecules carbohydrate protein lipid water percentage of water in food 0-95% oil is ____ % water 0% meat is ___ % water 70% free water water that is easily separated from food Bound water water incorporated into chemical nature of other nutrients why is water polar? electrically unsymmetrical positive H negative O 1 kilocalorie amount of energy needed to raise temp of 1kg of water by 1°C what substance takes the m...

list the characteristics of a normal thyroid. name 3 - ANS--difficult to palpate -midline -moves freely list the characteristics of an abnormal thyroid. name 3 - ANS--fixed -unsymmetrical -enlarged how many degrees are clubbed nails? - ANS-180 degrees What are clubbed nails a sign of? - ANS--poor circulation -pulmonary disease -heart disease What is pallor? - ANS-paleness of the skin...

Exam (elaborations) TEST BANK FOR McMurry's Organic chemistry 8th Edition By John McMurry and Susan (Study Guide and Student Solutions Manual) Study Guide and Student Solutions Manual Prepared by Susan McMurry Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States Organic Chemistry EIGHTH EDITION John McMurry Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due...