Solenoids Permanent Magnet- Magnetic Field. http://www.diracdelta.co.uk/science/source/m/a/magnetic%20field/source.html Magnets have two poles called North and South. Similar (like) magnetic poles repel. Unlike magnetic poles attract. A magnet attracts a piece of iron. The most important of the two properties of attraction and repulsion is repulsion. The only way to tell if an object is magnetised is to see if it repels another magnetised object. The strength and direction of a magnetic field
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Chemistry * a science that dealing with the structure‚ composition and properties of items and with the transformations that they undergo * the composition and chemical properties of a substance * chemical processes and phenomena (as of an organism) Examples: - Digestion; enzymes promoting chemical reactions that power our bodies. Lifting your arm requires your body to make and burn ATP using oxygen with carbon dioxide as one of the waste gases produced. - The internal combustion
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Assignment 2 – Business Studies – enter the dragon’s den You are going to develop a business idea and write a business plan. Below is a list of possible businesses you might be interested in starting: • Bed and breakfast business plan • Cafe business plan • Child care business plan • Consultant business plan • Day care business plan • Day spa business plan • fitness centre business plan • Hair Salon business plan • Health club business plan • Internet
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Cu-Zn voltaic cell used in the experiment. Zinc has higher reactivity and it is more likely to loss electrons. Thus‚ electrons flow from Zn electrode to Cu electrode. Copper stripe is the positive electrode. Zinc stripe is the negative electrode. Reaction happened on each terminal: Positive terminal: Zn-2e-→Zn2+ Negative terminal: 2H+2e-→H2 It is assumed that bubbles (hydrogen gas) will come out from copper electrode. It is assumed that zinc and copper stripes are pure. Classification of variables
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Ionic Reactions Abstract This experiment is designed to study the nature of ionic reactions‚ and write net ionic equations for precipitation reactions‚ as well as to identify spectator ions‚ perception reactions and solubility of different compounds. Experiment and Observations In this experiment I was using a 96-well plate to add two drops of the following solutions into seven wells in rows A through E: cobalt (II) nitrate‚ copper (II) nitrate‚ iron (III) nitrate‚ barium
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Factors that Affect the Rate of a Reaction BACKGROUND: Chemical reactions occur at different rates. In this experiment I will consider some of the key factors that influence the rate of a reaction: * nature of reactants - particle size * temperature * catalysts According to the collision theory‚ the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions‚ the faster the rate of the reaction. However‚ in order for
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looking for free academic papers such as free essays‚ free term papers‚ free research papers‚ free dissertations‚ free book reports/book reviews‚ free essays‚ free speeches‚ there exists a chance of being accused of plagiarism. Free papers downloaded from essay databases and essay sites can be easily detected by plagiarism detection systems and sofwares. You can find a lot of resources and sites with databases of free sample papers and free example papers on any topic. You can use these free college
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REPORT (Task 1) by: Claudia Chan Qian Nee Year 11 Virtue Reported to: Mr. Raymond Reported by: Claudia Chan Date: 18th February 2013 In this report‚ it will explain how our group came up with the idea of our project and why did we chose this as our project. I believe that every entrepreneur possess their own qualities and skills. Each of us in our team possessed our very own entrepreneurial skills and that benefits our team by combining all the skills together and coming up our project.
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(Name) (Course Name) (Instructors Name) (Date) Summary of chemistry lab report Introduction The two factors which affect the yield of products in a chemical reaction is the amount of starting materials (reactants) and the percent yield of the reaction. Many experimental conditions for example temperature‚ and pressure can be adjusted to increase yield of the desired product‚ in chemical reaction‚ but because chemicals react according to fixed mole ratios( stoichometrically)‚ the only limited
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theory law observation Part C - Matter is conserved in chemical reactions. ANSWER: law theory observation Part D - When wood is burned in a closed container‚ its mass does not change. ANSWER: observation law theory 3. Exercise 1.5 Part A - Define chemistry. ANSWER: Chemistry is the science that seeks to understand what matter does by studying what atoms and molecules do. Chemistry is the science of matter and its motion‚ as well as space and time - the
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