Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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levels on the reef are too great to be repaired naturally. This example of chemical bleaching should be noted in history as a reason for retiring the practice of using man made chemicals on reefs to promote their
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“The Effect of Level of Activity on Clothespin Squeezing Amount Question: Does exercising/ resting affect the number of times you can squeeze a clothespin in a minute? Hypothesis: If the person DOES NOT exercise before the task then‚ they will be able to squeeze the clothespin more because not exercising/resting allows the body to relax and there are no buildups of waste products. Biological Explanation: Both the respiratory system and the circulatory system are involved within my experiment
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EFFECTS OF TITLE IX AND SPORTS PARTICIPATION ON GIRLS’ PHYSICAL ACTIVITY AND WEIGHT Robert Kaestner This research was partially supported by grants from the Robert Wood Johnson Foundation and from the Chicago Center for Excellence in Health Promotion Economics of the University of Chicago and University of Illinois at Chicago. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research. ©2006
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Identifying the barriers and facilitators to participation in physical activity for children with Down syndrome. Images Authors: Barr M; Shields N Author Address: School of Physiotherapy and the Musculoskeletal Research Centre‚ La Trobe University‚ Melbourne‚ Vic.‚ Australia. Source: Journal Of Intellectual Disability Research: JIDR [J Intellect Disabil Res] 2011 Nov; Vol. 55 (11)‚ pp. 1020-33. Date of Electronic Publication: 2011 May 10. Publication Type: Journal Article Language:
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Chemical Separation Introduction: The objective of this experiment was to extract the pigments from spinach leaves‚ perform Thin Layer Chromatography (TLC) on the spinach leaf extract‚ and then determine the best solvent mixture to use to separate the pigments in the extract. The pigments are located inside the chloroplast walls in the cells of the spinach leaves. In order to obtain the pigments the cell walls must be broken down thus exposing the pigment containing chloroplasts. Upon
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Brittany Dunn English 101 (120) M. Leone 8 September 2013 The Process of a Process English is a subject every student is this county is required to take. What comes hand in hand with English? Essays (majority of peoples’ worst nightmare when entering the course) come hand in hand with English. Now depending on the teacher (professor) a “Process Analysis” otherwise known as a “How To” paper is just one of the necessary dissertations for the year. Have you ever wished for someone to just give
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PHYSICAL EVIDENCE MANUAL OREGON STATE POLICE FORENSIC SERVICES DIVISION Preference The purpose of this handbook is to educate our customer in the Criminal Justice System regarding the services provided by the Oregon State Police Forensic Services Division‚ and the recommended methods of documenting‚ collecting and preserving physical to ensure the best analysis results. The value of properly collected physical evidence followed by examination and interpretation by the forensic laboratory
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Activity: Identifying Forms of Energy Printer-friendly version Can you identify the different forms of energy in the picture below? Enter your answer in the table below and click the "Check Answers" button to check your work. Word Document: Text alternative of the Forms of Energy Activity The six fundamental forms of energy: Mechanical‚ Chemical‚ Thermal/Heat‚ Electrical‚ Nuclear and Radiation. Word Document: Text alternative of the Forms of Energy Activity https://www.e-education
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Biology Form Four Digestion Digestion is the process by which food is broken down from complex insoluble substances into simple soluble substances. There are two types of digestion – chemical digestion and mechanical digestion. Mechanical digestion involves breaking up large pieces of food into smaller pieces. This provides a large surface area for the action of enzymes on food. There is no change to the chemical composition of food during mechanical digestion. Mechanical digestion occurs in
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