An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons‚ giving it a net positive or negative electrical charge. The name was given by physicist Michael Faraday for the substances that allow a current to pass ("go") between electrodes in a solution‚ when an electric field is applied. It is from Greek ιον‚ meaning "going." The word ion also is responsible for electrical current being symbolized by the letter i in chemistry and physics. An anion
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4 Solubility Equilibrium- Common Ion Effect INTRODUCTION: The common ion effect is another example of Le Châtelier ’s Principle in action.The common ion effect tells us that the solubility of an ionic compound is decreased by the addition to the solution of another ionic compound that contains one of the ions involved in the solution It is also responsible for the reduction in solubility of an ionic precipitate when a soluble compound combining one of the ions of the precipitate is added to the
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Effect of ions on living organisms (24 marks) An ion is a charged atom or molecule. This is because it does not have an equal amount of protons and electrons‚ therefore giving the atom an overall charge. An example of an ion is ‚ this is sodium and the plus sign represents an overall positive charge. Ions are very important to living organisms as they are essential for life‚ they play an important role within the cell allowing mechanisms within the living organisms such as respiration‚ to take
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ESSENTIALS OF MANAGEMENT 10th MARCH 2013 Examination Paper Candidates should answer any FIVE (5) questions from this paper. Clearly cross out surplus answers. Time: 2 hours and 30 minutes Any reference material brought into the examination room must be handed to the invigilator before the start of the examination. ANSWER ANY FIVE (5) QUESTIONS QUESTION 1 a) Briefly explain what is meant by the term efficiency. Marks 2 b) What is the name given to a type of managerial role that involves people
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Essential skills: • Minimum of 3 years solid industry experience I used to work as a graphic designer and Jn. Creative Art Director 4 years for a advertisement agency called ArtPeople when I was in Istanbul‚ Turkey. • Web experience required During the studying and working‚ I have designed some websites. • Proficient with Adobe CS tools and Flash I have Illustrator‚ Photoshop‚ Indesign and Flash skills. • Exceptional creative ability When I was working for ArtPeople Istanbul‚ I was
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Management Essentials: Supervisory Skills Effective Communication Skills This guide was created as an additional resource featuring links to appropriate Internet based resources specifically chosen by Catherwood Library staff to support the following eCornell courses: "Effective Communication Skills" "The Impact of Personality Styles On Communication" "Managing Communication Challenges" Communication Styles Assertive Communication A tipsheet on assertive communications from
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Sociology 101 Language is essential Humans have an innate capacity for language and it ’s quite remarkable. Ever wonder how you learned how to talk‚ or how you transitioned from "goo-goo gaga" to "please pass the potatoes?" Turns out that we are born with a mental module called the language acquisition device which allows us to be open to languages of our culture. While we are just babies‚ our parents are talking and carrying on about their business and we are listening intently
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The Essential Drucker BOOKS BY PETER F. DRUCKER MANAGEMENT The Essential Drucker Management Challenges for the 21st Century Peter Drucker on the Profession of Management Managing in a Time of Great Change Managing for the Future Managing the Non-Profit Organization The Frontiers of Management Innovation and Entrepreneurship The Changing World of the Executive Managing in Turbulent Times Management: Tasks‚ Responsibilities‚ Practices Technology‚ Management and Society The Effective Executive Managing
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Megan Adkins-Blanch 11/10/14 TA: David Stephens CHE 3652-003 Aldol Condensation: 4-methoxychalcone Abstract: To synthesize 4-methyoxychalcone. Reaction Mechanism: Table: Compound Molecular Weight (g/mol) Density (g/mL) Boiling Point (°C) Melting Point (°C) Amount used (g‚ mL‚ etc.) Acetophenone 120.16 1.03 201.7 19.7 1 ml 95% ethanol 46.07 0.8 79 -114 50% NaOH 40.2 1.53 140 12 Anisaldehyde 136.16 1.12 248 -1 1 ml Structures: Acetophenone: 95% ethanol: 50% NaOH: Anisaldehyde: MSDS:
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Essentials of Consideration Presence of consideration is one of the requisites of Valid Contract. Consideration must be of two directional nature. That means both parties should get benefited mutually. Then only the Contract becomes capable of creating legal relations. Consideration may be in the form of cash‚ goods‚ act or Abstinence. Definition of Consideration “When at the desire of the promissor‚ the promisee or any other person has done or abstained from doing or does or abstains from
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