Destiny Lipede The Chemistry of Hair Coloring: What are the effects of hair color on synthetic hair? The first thing that comes to mind when people see hair color is “beauty.” But‚ what most do not realize is that chemistry plays a major role in many everyday products. What makes the colors so pretty and attractive? How can hair color effect synthetic hair? The question I want to answer is “what are the effects of hair color on synthetic hair?” I chose this topic because I wanted to learn how
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Chem 140C Practice Midterm I Answer Key April 2013 Q1_________(- points) Q2_________(- points) Q3_________(-- points) Q4_________(-- points) Q5_________(-- points) Q6_________(-- points) Total_________(100 points) Only use the front side of each page for your answers. Nothing on the back sides will be graded. If you write the exam in pencil or erasable pen‚ you give up your right to any kind of regrade. Name_______________________ PID#_________________________ 1. Amine Basicity (5 points)
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List of Chemistry Terms used in daily life α (alpha)‚ β (beta) α- (β-‚ γ-) ray spectrometer α-addition (alpha-addition) α-cleavage (alpha-cleavage) α-decay (alpha-decay) α-effect α-elimination α-expulsion in photochemistry α-oxo carbenes α-particle (alpha-particle) ’A’ value -factorquantity ab initio quantum mechanical methods abatement in atmospheric chemistry abeo- abiological abiotic abiotic transformation absolute activation analysis absolute activity‚ quantity absolute
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figures Rule 1- In calculations involving measured values (with a certain # of sig. figs)‚ the number of sig figs in the final answer depends on the operation performed. Rule 2- In multiplication and division of measured quantities‚ the final answer contains the same number of sig figs as are in the measurement with the least number of sig figs. Rule 3- In the final answer of a calculation involving exact numbers‚ unit conversion factors and constants‚ the number of significant figures is dictated
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UNIVERSITY FACULTY OF SCIENCE DEPARTMENT OF CHEMISTRY GUIDELINES FOR ORGANIC CHEMISTRY NON-MAJORS CHEM 181 By Dr. Haythem Ali Saadeh Fall‚ 2012 Course Title: ORGANIC CHEMISTRY for Non-Majors Course Number: CHEM 181 Prerequisite: General Chemistry Credit Hours: 2 Cr. Hrs. (comprises of 2 hrs. lecture per week) Course Instructor: Dr. Haythem Ali Saadeh h.saadeh@uaeu.ac.ae Textbook: “Organic Chemistry: A Short Course” By Harold Hart‚ Leslie E. Craine
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Extended Experimental Investigation Cold Pack Year 12 Chemistry Abstract: Cold packs are based on the principle of endothermic reactions‚ which means a reaction that absorbs heat from the surrounding resulting in a temperature drop. Due to this temperature drop‚ cold packs have many benefits when it comes to injuries such as sprains and strains. It cools the local tissue and reduces bleeding‚ swelling and pain. It also aids in a speedy recovery. The most commonly used
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References: Hebden Chemistry 12: Workbook for Students‚ Unit 1: Reaction Kinetics‚ pg. 1-36 Heath Chemistry Laboratory Experiments‚ Experiment 18 A: Factors Affecting Reaction Rate‚ pages. 192-196 Factors Affecting Reaction Rates http://chemwiki.ucdavis.edu/Physical_Chemistry/Kinetics/Factors_That_Affect_Reaction_Rates
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Introduction Pre-Lab Questions 1. What is a catalyst? An enzyme is a biological catalyst that speeds up chemical reactions in the body. 2. If you continue to add more catalyst will the speed of a reaction always continue to increase? Explain your answer. It will continue to speed up the reaction until there is more catalyst than the limiting reactant. 3. In this lab you will produce oxygen and water from hydrogen peroxide (H2O2). Write a balanced reaction equation for this reaction. 2H2O2(l)------>2H2O(l)+O2(g)
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Chemistry Final Exam Study Guide Shara Shonn Chapter 10 – Temperature – the measure of the average kinetic energy of the molecules or atoms in a system * The higher the kinetic energy the higher the temperature Vaporization – * Vaporization – the process by which a liquid or solid changes to a gas * Occurs when particles have enough energy to escape intermolecular forces Evaporation – * Evaporation – the process by which particles escape from the surface of a non-boiling liquid
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John Abarshi Mr Meinsma Chemistry December 14‚ 2010 Conductivity of Ionic solutions Introduction This lab report is about the conductivity of ionic solutions. In class we have been discussing wether all ionic solutions conduct equally well. If an solvent solution conducts electricity‚ then it must contain ions. So measuring the conductance of solutions can tell you whether the solutes in the solution are dissociated into ions. (Conductivity) Any type of solution‚ even ionic solutions‚ provide
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