a tremendous variety of oxidation states that appear in its compounds. The oxidation numbers range from Mn (III) in compounds like Mn(NO)3CO to Mn (VII) in KMnO4. Compounds of manganese range in oxidation number between theses two extremes. This experiment involves the preparation of a Mn (III) complex of actylacetone (also named 2‚4-pentanedione) which is a useful starting material for the preparation of other Mn (III) compounds. Manganese (III) complexes are relatively stable and can be prepared
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Osmosis Experiment Subject: Professor Egg-avier Duration: 3 weeks (Oct 2nd – Oct 16th) Week 1 On October 2nd my group was giving a raw egg (weighing 58.8 grams) and placed it into a clear mason jar with 200mL of vinegar. The ph levels of our vinegar equaled a 2 which tells us that vinegar is a fairly acidic liquid. Once submerged in the vinegar‚ little bubbles began to appear around the egg’s shell. We believed this to be carbon dioxide escaping from the shell. We left our egg to sit in the
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crimes occurring when there is police present. These strategies were made to reduce the crimes and make the public feel more safe in the street. The Kansas City Experiment started on October 1972 and continued to 1973 ‚ it was administered by the Kansas City Police Department and evaluated by the Police Foundation. The Kansas City Experiment tested the use of preventive patrol on crime rates and citizens fear of crime. The police foundation divided Kansas into fifteen different areas‚ and those fifteen
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Observations of Chemical Changes Purpose: To observe some properties of chemical reactions and associate them with everyday household cleaning products. Procedure: In order to complete this experiment‚ I had to set up and organize my lab table. I used my 24-well plate‚ my 96-well plate‚ and the first experiment bag which included all of the necessary chemicals. I also had to gather 3 household cleaning products and a pipet in order to test them as well. The procedure involved was putting 2 drops of
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Purpose The reason for this experiment is to prove that objects of different masses‚ when dropped from the same height‚ fall at the same velocity. Apparatus - 2 Marbles of different mass‚ one steel and one nylon - Dropping Mechanism with a lever to hold the marble and pull for drop - Bee Spi (measures velocity in kilometers per hour.) - Box to catch the marble on the way down Procedure The dropping mechanism was set up‚ with the BeeSpi attached to it at 26.5” from the lever that drops
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PROCEDURE Part I Setting Up Experiment 2D: Separation of a mixture by Paper Chromatography Objectives: 1. To assemble and operate a paper chromatography apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health
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Press. • Zimbardo‚ P. G.‚ Maslach‚ C.‚ & Haney‚ C. (2000). Reflections on the Stanford Prison Experiment: Genesis‚ transformations‚ consequences. In T. Blass (Ed.)‚ Obedience to authority: Current Perspectives on the Milgram paradigm (pp.193-237). Mahwah‚ N.J.: Erlbaum. • Haney‚ C.‚ & Zimbardo‚ P. G. (1998). The past and future of U.S. prison policy: Twenty-five years after the Stanford Prison Experiment. American Psychologist‚ 53‚ 709-727. • Zimbardo‚ P. G.‚ Haney‚ C.‚ Banks‚ W. C.‚ & Jaffe‚ D
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The cerebellum of the brain‚ the “little brain”‚ is located at the rear of the brainstem. The tissue is folded into itself several times and each layer helps with the organization on the mind. It is clear that the cerebellum has an essential job because over time it has grown‚ by studying fossilized skulls it has been exposed that the cerebellum has increased to three times its size over the past million years. This small lump of tissue was first discussed by Ray S. Snider in an article written
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Parachute Experiment Aim: To investigate the effect of surface area on a performance (more the amount of a parachute better the performance) of a parachute. Hypothesis- More the amount of holes in a parachute‚ faster the rate of the fall. Variables: Dependent variable- The time it takes for the parachute to reach the ground. Control variables:Mass > Adding or subtracting mass from the load. > Clay can be molded around the load to increase mass. > Parts of the load can be cut off to decrease the
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– secretes synovial fluid 2. Which is correctly paired – abduction – lifting the arm horizontally to form a right angle with the side of the body or moving a part away from the middle 3. Which of the following is not a synovial joint – symphysis 4. Types of fibrous joints inclue – syndesmosis‚ suture‚ and gomphosis joints 5. Joints are also called – articulations 6. The joint that separates two vertebrae is a – symphysis that is amphiarthrotic 7. Fluid-filled sacs containg
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