Chemical Reactions and Equations Chemical Reaction: The transformation of chemical substance into another chemical substance is known as Chemical Reaction. For example: rusting of iron‚ setting of milk into curd‚ digestion of food‚ respiration‚ etc. In chemical reaction new substance is formed which is completely different in properties from the original substance‚ so in a chemical reaction chemical change takes place. Following are the signs of chemical reaction: (a) Change of state of substance
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27 4 d e (2) 3 (b) If the length of the rectangle is x m‚ and the area is A m2‚ express A in terms of x only. (1) (c) What are the length and width of the rectangle if the area is to be a maximum? (3) (Total 6 marks) 5. (a) Solve the equation x2 – 5x + 6 = 0. (b) Find the coordinates of the points where the graph of y = x2 – 5x + 6 intersects the x-axis. Working: Answers: (a) ………………………………………….. (b) .................................................................. (Total 4 marks)
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Chapter 22 The Demand for Money T 1) Multiple Choice The quantity theory of money is a theory of (a) how the money supply is determined. (b) how interest rates are determined. (c) how the nominal value of aggregate income is determined. (d) all of the above. Answer: C Question Status: Previous Edition 2) Because the quantity theory of money tells us how much money is held for a given amount of aggregate income‚ it is also a theory of (a) interest-rate determination. (b) the demand for money
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substance formed after a chemical reaction is called product. Chemical Equation: Representation of chemical reaction using symbols of substances is called chemical equation. Chemical Equation is a way to represent the chemical reaction in concise and informative way. Chemical equation can be divided into two types – Balanced Chemical Equation and Unbalanced Chemical Equation. Balanced Chemical Equation: A balanced chemical equation has number atoms of each element equal on both side. According to
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Elements of Information Theory Thomas M. Cover‚ Joy A. Thomas Copyright 1991 John Wiley & Sons‚ Inc. Print ISBN 0-471-06259-6 Online ISBN 0-471-20061-1 Elements of Information Theory Elements of Information Theory Thomas M. Cover‚ Joy A. Thomas Copyright 1991 John Wiley & Sons‚ Inc. Print ISBN 0-471-06259-6 Online ISBN 0-471-20061-1 WILEY SERIES IN TELECOMMUNICATIONS Donald L. Schilling‚ Editor City College of New York Digital Telephony‚ 2nd Edition John Bellamy Elements of
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Quadratic Equations Equations Quadratic MODULE - I Algebra 2 Notes QUADRATIC EQUATIONS Recall that an algebraic equation of the second degree is written in general form as ax 2 + bx + c = 0‚ a ≠ 0 It is called a quadratic equation in x. The coefficient ‘a’ is the first or leading coefficient‚ ‘b’ is the second or middle coefficient and ‘c’ is the constant term (or third coefficient). For example‚ 7x² + 2x + 5 = 0‚ 5 1 x² + x + 1 = 0‚ 2 2 1 = 0‚ 2 x² + 7x = 0‚ are all
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Ordinary Differential Equations [FDM 1023] Chapter 1 Introduction to Ordinary Differential Equations Chapter 1: Introduction to Differential Equations Overview 1.1. Definitions 1.2. Classification of Solutions 1.3. Initial and Boundary Value Problems 1.1. Definitions Learning Outcomes At the end of the section‚ you should be able to: 1) Define a differential equation 2) Classify differential equations by type‚ order and linearity Recall Dependent and Independent
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References: Butler (2008) Privatizing Federal Spending: A Strategy to Eliminate the Deficit. London: Layaly Press Holtmann A G and Ullmann S G‚ (1991)‚ ‘Transactions Costs‚ Uncertainty‚ and Not-For-Profit Organizations’‚ Annals of Public and Co-operative Economy Kennedy (2009) The Stages of the Decline of the Public/Private Distinction. New York: Mc millan Laura (1999) Better delivery by
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Factor of Safety (FOS) calculation method: CMRI formula CMRI developed a formula for pillar strength taking into account the pillar w/h ratio‚ the uniaxial compressive strength of the pillar‚ the height of seam and depth of cover S = Pillar strength (MPa) σc = Uniaxial compressive strength (UCS) (MPa) h = Working height or seam height (in m) H = Depth of cover (in m) w = Pillar width (in m) Obert-Duvall/Wang Formula (Obert and Duvall‚ 1967) It was derived from laboratory
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Writing Complete Equations Practice For each of the following problems‚ write complete chemical equations to describe the chemical process taking place. Important note: There are a few physical processes on this sheet – You can’t write an equation for a physical process! 1) When lithium hydroxide pellets are added to a solution of sulfuric acid (dihydrogen sulfate)‚ lithium sulfate and water are formed. 2) When dirty water is boiled for purification purposes‚ the temperature is brought up to
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