the other types of potatoes used in the experiment. Materials: Test tube rack 4 test tubes Graduated cylinder Beaker 10-15 mL of hydrogen peroxide Potatoes Raw potato Potato soaked in baking soda Potato soaked in baking soda Stopwatch Goggles Procedures: 1. Get all your materials. Put all the potatoes into individual test tubes. 2. Pour 3mL of hydrogen peroxide into one test tube. Watch and time how much time goes by before the reaction begins. 3. Observe and write down the time
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polarity on the solubility of solutes in variates of solvents and helped us to determine the polarity of the unknown solute. In this lab‚ we observed the effects of adding polar liquid solutes to non-polar liquid solvents. Materials used: Safety goggles 3 graduated cylinders ethanol‚C2H5OH solid iodine‚ I2 glycerol‚ C3H5(OH)3 water 10 rubber stoppers 10 test tubes kerosene ammonium chloride‚NH4CL an unknown solute The polarity of a solute or solvent
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How a faster pulse rate after exercise affects the amount of carbon dioxide in breath and how males and females pulse rates change or don’t after exercise Introduction There is a chemical reaction that takes place in this lab‚ O2 + C6H12O6 –> H2O + CO2 + ATP. This represents cellular respiration‚ the reaction. The reactants are Oxygen and Glucose. The products are water‚ carbon dioxide‚ and ATP. This reaction is split into 3 stages‚ the Glycolysis stage‚ the Krebs cycle‚ and the Electron Transport
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Chayene Banta‚ Taylor Denton‚ Sarosh‚ Brianna Madar * Mrs. Kolobaric Purpose: To use a set of standardized procedures to test for simple sugars and starch‚ proteins‚ and fats. Hypotheses: A.) B.) C.) Equipment: -Safety goggles -Lab apron -400 mL beaker -Utility stand with ring clamp -Hot plate -Thermometer -10 mL graduated cylinder -Test-tube racks -8 to 16 test tubes -Test tube holder -Medicine dropper
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LC-50 (toxicity)‚ bleach will have the intermediate LC-50 (toxicity) and vinegar will have the lowest LC-50 (toxicity). MATERIALS AND METHODS: For this experiment we use the following materials: Petri dishes (4 per group) Stop watch or clock Safety goggles (1 for each person) Brine shrimp Brine solution (3.5% w/v NaCl and water) need 600 ml per class Vinegar- need about 50 ml in small dropper bottle (1 per group) Ammonia- need about 50 ml in small dropper bottle (1 per group) Bleach- need about 50 ml
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Works Cited or Works consulted Baum‚ Frank L. The Wonderful Wizard of Oz. New York‚ New York 10014‚ USA: New America Library‚ November 1984. Print. The wizard of Oz. Dir. Victor Fleming. Pref. Judy Garland‚ Ray Bolger‚ Jack Haley and Bert Lahr. MGM‚ 1939.DVD. Compare and Contrast After reading the novel The Wonderful Wizard of Oz by L. Frank Baum and watched the film
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simply responded‚ “They are not our teachers‚ he is a boy‚ tell your general…” and he returns the flag to the surviving Italian soldier and sends him back‚ as opposed to killing him. In contrast‚ on the scene of General Graziani’s victory‚ he has sand goggles on as well as wearing a flag as a cape. He is then presented with a flag raising ceremony to declare their dominance of the area. When ambushed by a gas attack Mukhtar loses his glasses‚ just as his comrades have fallen dying or injured. Shortly
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1. What questions could be asked of J.S’s family to help determine the cause of her stroke as thromblytic‚ embolic‚ or hemorrhagic (e.g questions to asses risk factors for each type of stroke)? The family should be asked the following: History of diabetes and hypertension? Is she a smoker? Any history of cardiac dysfunction and dysnhythmias (spelling on this?)? History hyperlipidemia? Anymore questions we can add? 2. Based on the scenario described above which hemisphere (Left or right)
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writing "no reaction visible." The well plate was then thoroughly rinsed in the sink. All pipettes were rinsed using a beaker of soapy water and plain water; many other clean up procedures were then followed. Safety precautions were taken by wearing goggles and gloves at all times‚ care being taken when handling chemicals with pipettes and avoiding contact with the skin and clothing. After experimenting it resulted that CO32- mixed with Ag+ was a milky white substance that looked like paint. CO32- mixed
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Today I’m going to talk to you about the importance of gearing up for safety‚ how to operate the bike‚ some tips for you to enjoy racing. First you will need the proper gear and that includes: boots‚ knee pads or braces‚ chest protector‚ a helmet‚ goggles‚ gloves‚ and the racing jersey and racing pants. That gear will help protect anyone from seriously becoming injured. Hitting the ground isn’t fun when you do not have any protection on. Second‚ you need to make sure your bike is ready to ride. Your
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