Investigating Chemical Equilibrium Date: 30th April 2013 Due Date: 15th May 2013 Prepared For: M. Seraji Prepared by: Andrea Odunze Abstract Many reactions proceed to a state of equilibrium. A chemical reaction at equilibrium‚ where the rates of the forward reaction and reverse reaction are equal‚ looks like this: A + B AB There are three factors‚ according to Le Chatelier’s principle‚ that affect the equilibrium position and equilibrium constant. These are the concentrations of products
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Frantzy Senat Lab 2.2 Question 1 Which administrative user accounts can create a site? Contos/DomAdmin‚ contoso\EntAdmin‚ emea\EntAdmin‚ d. In the child domain‚ attempt to create a unique user account. Record the names of the accounts that can be used to create new users. Contoso\EntAdmins‚ emea\domadmin‚ & emea\entadmin d. Log off and log on as the EntAdmin user. Repeat steps 4b through 4c to determine whether the EntAdmin user has the ability to view and/or modify the schema. Contoso\schadmin
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Observations of Chemical Changes Purpose: The purpose of this experiment is to observe chemical changes in common consumer products to determine if the chemicals are basic‚ acidic‚ or remain neutral when mixed with other chemicals. Procedure: In this experiment‚ various chemicals were mixed together‚ to determine a reaction. Using two drops from chemical 1 and two drops of chemical two‚ unless otherwise stated‚ then recording the type of physical reaction or color changes that occurred.
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Activity 1 – Theories of Ageing Disengagement theory The disengagement theory is one of the first social theories of ageing developed by Cumming and Henry in 1961. It is the idea of which states older people begin to withdraw or disengage from their past roles in society due to the decrease of their physical‚ intellectual and emotional abilities and skills which they are unable to accommodate in their roles. Also‚ at this stage of life‚ the elderly will eventually begin to diminish interests in activities
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Introduction‚ aim and hypothesis Chemical reactions are accompanied by the release or absorption of energy. Reactions which release energy are described as exothermic and those which absorb energy are endothermic. The energy released in chemical reactions was previously stored as chemical potential energy in the reactants; this stored energy is called enthalpy. The aim of this practical is to observe and classify chemical processes as endothermic or exothermic‚ based on the changes in temperature
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Week 7 Digestion Lecture Study Guide Based on information found in the lecture folder or other sources‚ answer the following questions. 1. What is digestion? Digestion is the mechanical and chemical breakdown of food into usable molecules 2. List some other names of the digestive tract. Alimentary Canal (GI Tract) 3. Explain where and how the mechanical breakdown of food occurs. Teeth begin digestion mechanically‚ Chewing (“mastication”) breaks apart food‚ 2 sets of
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INET Lab Report 2 Microscope and the Cell Template Student: Mavon Riley Email: shantariley@yahoo.com Date: 09/05/2014 I. Purpose of the Microscope II. The Compound Microscope EXERCISE 2.1 – Label the parts of the compound microscope 1. Eyepiece 2. Arm 3. Course Adjustment 4. Fine Adjustment 5. Revolving Nose piece 6. Objective Lenses 7. Stage Clips 8. Stage 9. Iris Diaphragm Lever 10. Condenser 11. Light Source 12. Base EXERCISE 2.2 – Calculate microscope
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branch of physical science in which deals with the relations between heat and other forms of energy. The ability to predict if a chemical reaction will occur spontaneously or non-spontaneously is an important aspect of thermodynamics. Spontaneity is determined from free energy‚ or Gibbs free energy. The equation (1) gives the relationship of how entropy (∆S) and enthalpy (∆H) along with temperature affects the amount of free energy‚ and henceforth the spontaneity. A spontaneous process may be quick
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Chemical and Physical Changes in Matter Purpose: The purpose is to observe chemical and physical changes and to identify each. Procedure: Do experiments 1-8 as directed by the handout. Data and Results: Experiment | Observations | Type of Change | Supporting Evidence | 1 | -After a few seconds‚ yellow smoke was produced-Wood splinters are becoming black-Bottom part of test tube has black color on the sides-Some woods splinters have been burned to ash-Middle of test tube has yellow
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The social-emotional‚ cognitive and physical benefits of physical activity During childhood our body and mind changes very fast. I believe that nowadays parents focus more on the brain developement of their children than their physical activity. When I was a little girl - over 20 years ago - we spent most of our time outside playing‚ running and enjoying fresh air and being in movement. Physical activity of children can secure them health and well being in their adulthood as well as teach
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