I. Grade Level/Unit Number: 9-12 Unit 7 II: Unit Title: Mole Concept III. Unit Length: 7 days (on a 90 min. per day block schedule) IV. Major Learning Outcomes: Students should be able to: Mole Concept • Calculate formula mass. • Convert representative particles to moles and moles to representative particles. (Representative particles are atoms‚ molecules‚ formula units‚ and ions.) • Convert mass of atoms‚ molecules‚ and compounds to moles and moles of atoms
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up the rate of reaction without itself being used up in the process. Enzymes provide an alternate reaction pathway by lowering the activation energy needed for a reaction to occur. For two molecules to react they must collide with each other‚ however‚ they have to collide with sufficient energy. Sufficient energy means that between them they have enough energy to overcome the energy barrier to reaction. This is called the activation energy. Even though enzymes can alter the rate of reaction‚ they
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KNES 470 Dr Rubin 4-18-12 Sodium Bicarbonate and Boxing Performance Boxing is a sport which relies on anaerobic power since it contains short-duration and high intensity work. A typical boxing match today consists of 3 minute rounds with a 1 minute seated recovery rest. When an athlete performs exercise at maximal level for more than 30 seconds‚ most of the energy comes from anaerobic glycolysis. During this process‚ lactic acid is produced which causes a decrease in pH levels within the muscle
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Accounting systems can provide enormous amounts of information‚ including full profit statements‚ balance sheets and details of outstanding debtors‚ creditors and stock-holding levels. Sometimes they produce so much information that owner-managers cannot cope and prefer to ignore them. In fact‚ most small firms can be controlled by monitoring‚ on a timely basis‚ just six pieces of information that tell the owner-manager different‚ but vital‚ information on the performance of the business. These are
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Modern methods of food production have altered radically from processes used in the past. Many food producing companies have invented their own improved techniques of cooking. Most of these procedures contain numerous different forms of chemical additives and one of the newest chemical substances that will enhance food flavor is monosodium glutamate (MSG). Even though it has no taste of its own‚ it intensifies considerably the taste of a wide variety of food as well as revealing flavors that could
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rod to the solution and observe the reaction. 2 Fe + 3 CuSO4 = 3 Cu + Fe2(SO4)3 The new product is iron (III) sulfate‚ it contains the Fe 3+ ion which is brown. Lead (II) nitrate and potassium iodide solutions Pour about 2.0 mL of lead (II) nitrate into the test tube. Add 5 to 10 drops of potassium iodide solution to the test tube and record your observations of the reaction. Pb(NO3)2 + 2 KI = 2 KNO3 + PbI2 2. Magnesium metal and hydrochloric acid solution Place one scoop of magnesium
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Coasha Patton 1st February‚2013 History What factors contributed to the social unrest of the 1930’s and the 1940’s? When citizens are not satisfied ‚ something is lead to happen ‚ this is called an unrest. The Bahamas between the years 1930 to 1940‚ social unrest came about. That Bahamians were fed up with the categorization or separation of society that they were placed in‚ in their own country. The Bahamas always experienced social unrest but it was during these years that its strength increased
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Essay 1 An individual’s work achievement can be best predicted by measuring their intelligence. Discuss. In modern life‚ the motive to success in career has been researched in order to benefit both individual and organisation. The term “intelligence” has been acknowledged over the world as a common way to compare between individual people. Majority believe that succeed of every people can be best measured in that way. However‚ after many year of using that‚ some people argue intelligence
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Stomach Acid. (Chemistry Project) Project Prepared By: Name Class- Roll no. INDEX page no. Objective 3 Introduction 3 Acids 4 Stomach Acid 5 Some foods containing acids
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Factors Influencing Rate of Reaction Aim To investigate several effects believed to influence rate of reaction‚ concentration of a substance and temperature‚ and observe the effects. Hypothesis Concentration and temperature will both increase the rate of reaction in accordance with collision theory. Introduction The reaction rate or rate of reaction for a reactant or product in any given reaction can be defined as the speed with which a reaction occurs. For example‚ the oxidation of iron
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