Introduction What is chemical change? Chemical change is the alteration of a substance into one or more different substances with different properties (also called chemical reaction). The four different types of chemial reations are synthesis‚ decomposition‚ single displacement‚ and double displacement. Synthesis is when atoms and/or molecules combine to form larger molecules. Decomposition is when a large molecules are split into elements or smaller molecules. Single Displacement has an element
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Maxwell Ampere Equations R. M. Kiehn (in preparation - last update 10/31/97) Physics Department‚ University of Houston‚ Houston‚ Texas Abstract: The topological universality of the Maxwell Faraday and Maxwell Ampere equations is an artifact of C2 differential forms on a domain of dimension n * 4. Starting with a 1-form of (electromagnetic) Action‚ the Maxwell Faraday equations become a consequence of the Poincare lemma. Starting from an N-1 form density‚ the Maxwell Ampere equations become a consequence
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_________________ Teacher: _______________ Reviewer: Quadratic Equations I. Multiple Choice: Choose the letter of the correct answer. Show your solution. 1. What are the values of x that satisfy the equation 3 – 27x2 = 0? A. x = [pic]3 B. x = [pic] C. x = [pic] D. x = [pic] 2. What are the solutions of the equation 6x2 + 9x – 15 = 0? A. 1‚ - 15 B. 1‚ [pic] C. – 1‚ - 5 D. 3‚ [pic] 3. For which equation is – 3 NOT a solution? A. x2 – 2x – 15 = 0 C. 2x2
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Introduction: A balanced chemical equation has reactants and product that has to represent a formulae. The amount of each element‚ number needs to be the same in either side of the equation. (E.g.‚ HCl(aq)+NaHCO3(s) reacts to produce NaCl(aq)+H2O(I)+CO2(g)‚ this is the equation given for this lab). This help us view the study of Law of Conservation of Mass‚ when either side of equation is equally balanced. The calculation for formula mass helps determine if you need to convert grams to a particular
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Significance of the Value Equation for Global Marketers According to Keegan (2002)‚ the value equation can be considered as a guide to create perceived value for customers by any organization operating anywhere in the world. The value equation is known as V=B/P‚ where V is the value‚ B is benefits and P is price. The value can be increased in two ways‚ by increasing the numerator ‘benefits’ or by reducing the denominator ‘price’. Keegan (2002) elaborates that the benefits can be increased by
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2 First-Order Differential Equations Exercises 2.1 1. y 2. y y x t x t 3. y 4. y y x x t 5. y 6. y x x 7. y 8. y x x 17 Exercises 2.1 9. y 10. y x x 11. y 12. y x x 13. y 14. y x x 15. Writing the differential equation in the form dy/dx = y(1 − y)(1 + y) we see that critical points are located at y = −1‚ y = 0‚ and y = 1. The phase portrait is shown below. -1
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A 70% B AS Level Chemistry 60% C 2008 – 2009 50% D 40% E Below U Questions on % Haloalkanes 2.8 32 1. Chloromethane can be prepared by a reaction between methane and chlorine in the presence of ultraviolet radiation. (i) Outline the mechanism for this reaction. ..................................................................................................................................... ..................................................
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system specifies each point uniquely in a plane by a pair of numerical coordinates‚ which are the signed distances from the point to two fixed perpendicular directed lines‚ measured in the same unit of length. Cartesian coordinate system is a way of locating objects in either two- or three-dimensional space by specifying their X(horizontal) position‚ Y (vertical) position and Z (through) position. It is used in graphics and in positioning text on documents. -Algebraic equations involving the coordinates
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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 or slow‚ and it is only affected by temperature and energy‚ therefore it is not related to kinetics or reaction rate. equation
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Applications: Graphing Simultaneous Equations − − − − Relating linear graphs and simultaneous equations Analysing graphs Practical applications of linear graphs Writing algebraic equations Jane Stratton Objectives: • Use linear graphs to solve simultaneous equations • Use graphs of linear equations to solve a range of problems • Translate worded problems into graphical and algebraic form Finding the Solution to an Equation from a graph • Finding solutions to an equation when we have a graph is easy
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