extended micro-waving. Alcohol Implicated in oral cancer. Found in mouthwash‚ astringent‚ toothpaste‚ cleansers. Alkyl-phenol Ethoxylades May reduce sperm count. Found in shampoo and bubble bath. Alpha Hydroxy Acid Destroys skin cells and leaves skin more susceptible to damage from the environment and skin cancer. Actually ends up aging skin. Found in anti-aging facial creams and lotions. Aluminum Heavy concentrations may be linked to Alzheimer’s dementia. Aluminum is in many antiperspirants
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You can use a flashlight to help see if a mixture is a solution‚ a suspension‚ or colloid. A solution is a mixture that forms when substances dissolve and form a homogenous mixture. A suspension is a heterogeneous mixture that separates into layers over time. A colloid is a mixture that contains some particles that are intermediate in size between the small particles in a solution‚ and the larger particles in a suspension. A homogenous mixture is a mixture in which the substances are so evenly distributed
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EXPERIMENT 6 – Empirical Formula of a Compound INTRODUCTION Chemical formulas indicate the composition of compounds. A formula that gives only the simplest ratio of the relative number of atoms in a compound is the empirical formula or simplest formula. The ratio usually consists of small whole numbers. We call a formula that gives the actual numbers of each type of atom in a compound the molecular formula. The numbers in a molecular formula will be whole number multiples of the numbers in an empirical
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Alan Aguilar Prof. Baker English Fall 2014 The Alchemist Essay Have you every wondered what it takes for you to achieve perfection? In the novel The Alchemist Santiago has certain impurities that he has to get rid of to reach his personal legend. 3 impurities Santiago has in the novel are Fear‚ Purity‚ and faith. “The land was ruined‚ and I had to find some other way to earn a living. So now I’m a camel driver. But that disaster taught me to understand the word of Allah; people need not fear
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Preparation of an Ionic Compound from Aluminum Metal October 6‚ 2010 The purpose of this laboratory project was threefold‚ in that it presented three main objectives. The first objective was to prepare the ionic compound alum from aluminum powder. The alum was produced from the reduction-oxidation reaction of aluminum with potassium hydroxide and sulfuric acid in water. The second objective was to then analyze the alum product for water crystallization; that is‚ to determine the value of x in
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Jessica Robins Lab 3: Properties of Organic Compounds Introduction Distillation is a physical process used to separate chemicals from a mixture by how easy they vaporize. The temperature rises unit it reaches the temperature of the lowest boiling substance in the mixture while the other contents of the mixture remain in their original phase (until the most volatile substance has all boiled off) as it’s heated. Hot vapor results and passes into a condenser and is then converted to a liquid
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Experiment 1: Mixtures Aim: To develop an understanding of different types of mixtures including solutions and examine the different solubilities of some solutes and two solvents: water and ethanol Equipment Bunsen burner Tripod Gauze mat Beakers (2 x 100mL) Boiling chips Distilled water Sodium chloride Sodium chloride (solid) Glass rod Measuring cylinder (25mL) Ethanol Watch glass Thermometer 100% Orange Juice 100% Apple Juice 100% Prune Juice Solder Fruit Scone Charcoal Copper(II) Chloride Magnifying
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Report of Experiment 1 Purification and Identification of An Unknown Mixture Aim To separate a mixture of a neutral (ester‚ alcohol‚ ketone‚ aldehyde or ether) and an acidic compound (phenol or carboxylic acid) or a neutral and a basic compound (amine)‚ and to identify the unknown mixture by physical (M.P. or B.P.) and spectroscopic methods (NMR‚ IR and MS). Method The mixture (sample number: 27) was dissolved in 200 mL of CH2Cl2 and then extracted with 10% NaOH. The acid was removed
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Tacula‚ Jassy Camille D.S. Activity 11 Acids and Bases I. Objectives * To identify some acids and some bases which are used in common household products. * To construct an operational definition of an acid and a base‚ using the characteristic properties of those substances. II. Procedure A. For acids * Place 2ml each of dilute acetic acid‚ hydrochloric acid‚ sulfuric acid‚ carbonated drink (colorless) and calamansi juice extract in
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measuring cup (250 mL) * Hot water * 1 chiken bouillon cube * 3 small clear cups * 1 measuring spoon (5mL) * White vinegar * Masking tape * Marking pen * Table salt Procedure 1. Fill the measuring cup with hot water from the faucet. Add the bouillon cube and wait for it to dissolve. Divide the solution equally among the three cups. 2. Add one spoonful of vinegar to the first cup. Using masking tape and pen‚ mark the cup “vinegar”. Add one spoonful of salt to the
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