skinned and the only way to accomplish this is through the use of the skin bleach. They did not come to this conclusion by themselves. While watching the documentary Skin Bleaching Addiction‚ I noticed that the Nigerian men also showed a preference for the lighter skin women. The men in the documentary made comments about how they prefer a woman with lighter skin due to preference but they did not approve of the women that bleach their skin since these women “look like ghost or sickly”. Among African
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by adding drops of vinegar‚ bleach and ammonia to the controlled water. We found that the vinegar was the most effective and the quickest. The ending results were very interesting when being compared to our hypothesis and we learned that some chemicals can react faster than others and each contains a different level of concentration. HYPOTHESIS: For brine shrimp exposed to increasing concentrations of three chemicals‚ ammonia will have the highest LC-50 (toxicity)‚ bleach will have the intermediate
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Pos t-Lab Data Summary Note : some questions will display a variable like "nCount" or "SyInput" instead of an actual number in the data summary. Q# Question Text 5) Data Entry - No Scoring Enter the precise mass in GRAMS of the potassium iodate used to prepare your primary standard solution. Your mass precision should be reported to a thousandth of a gram‚ i.e. 0.302. (Use 3 significant figures.) Your Answer: 0.536 No Points Possible 6) Scoring Scheme: 3-3-2-1 If one had weighed out precisely
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General Chemistry Laboratory 151 Chemiluminescence Introduction: The objective of tis experiment was to carry out systematic series of experiments in order to determine which chemicals and which ratios of chemicals produce the brightest light. Also‚ this experiment will determine which chemical produces the longest light. Chemiluminescence is the emission of light (luminescence)‚ as the result of a chemical reaction. There may also be limited emission of heat. This occurs because the
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time. Because the trials were done systematically from one to the next‚ only one element of each trial was changed at a time‚making it easy to single out the defining factors. There were many chemicals used during this experiment including Luminol‚ bleach‚ DMSO‚ NaOH‚ HCl‚ and H2O2. On the second day of trials‚ the Luminol was chilled to test the effects this would have on the glow we obtained through chemical reactions. Results of Day 1: Table 1: Trial | Luminol (D) |
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sodium iodide and common bleach as the oxidizing agent in aqueous alcohol as the solvent. Balanced Chemical Equations: Physical Properties: Name of Chemical Chemical Structure Molar Mass (g/mol) BP/MP (ºC) Density (g/mL) Mass/Vol. Used Purpose 3-methoxy-4-hydroxybenzaldehye C8H8O3 152.1494 MP=81-83‚ BP=285 NA 0.1g Solute Ethanol CH3CH2OH 46.0688 MP=-114.1‚ BP=78.3 0.789 2.0mL Solvent Sodium Iodide NaI 149.8943 MP=661‚ BP=1300 3.667 0.117g Catalyst Bleach NaOCl 74.4422 MP=NA‚ BP=40dec
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strategic decisions that have changed the company dramatically in size and type of products offered. Clorox exited businesses that were not doing well (insecticides‚ bottled water‚ restaurant equipment) and built up its core brands with new products (bleach gel pen). Clorox used acquisition strategy to buy First Brands Corp. giving it a number of nationally known brands including the Glad line of plastic food and trash bags. [Learning Outcome 1.1: Explain why strategic management is important‚ Learning
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I used to bleach and dye my hair a different color every month when I was in high school. (my hair is hot pink and black in my senior picture) I have tried almost every semi-permanent metallic dye and that’s definitely what you see pictured above. The colors look like After Midnight Blue (dark blue)‚ Bad Boy Blue (light blue)‚ Hot Hot Pink (dark pink)‚ and Cotton Candy Pink (light pink)‚ all by M-P. I hope this helps. TOOLS: highlighting comb‚ clips‚ foils‚ color brush‚ hair bleach with the appropriate
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Learn about the basic biology of brine shrimp. Hypothesis In this lab I hypothesize that the most lethal household chemical is bleach and that is has the lowest LD50. Materials: ● ● ● ● ● ● ● ● ● ● ● 1000 ml beaker/2 gallon tank air pump air stone tubing eye droppers 10 ml pipettes graduated cylinders small petri dishes dissecting scopes/hand lenses beakers stopwatch live brine shrimp Lysol Bleach vinegar acetone (nail polish remover) Procedures: Place live brine shrimp in a small aquarium tank or a 1000ml beaker with an aerator
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can slow the growth of‚ or kill‚ microorganisms. Hypothesis: The antiseptic that will prevent the growth of bacteria the most is iodine. The disinfectant that will prevent the growth of bacteria the most is bleach. Procedure: To begin the lab‚ turn the agar plate over and divide the plate into four quadrants and label the agar plate whether you used the E. coli or B. megaterium and number the quadrants 1 through 4. Please keep in mind that one pair will
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