Investigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid Planning I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use concentrations of 50cm3 using different volumes of water and acid. Introduction I am investigating how the rate of reaction between marble chips and hydrochloric acid is altered when the concentration is changed. This is the word equation for my investigation
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Republic of the Philippines NATIONAL POLICE COMMISSIO PHILIPPINE NATIONAL POLICE Sagada Police Station Sagada‚ Mt. Province TO : Mario Masipag Chief of Police SUBJECT : Special Report Re: Bank Robbery DATE : October 26‚ 2013 I. AUTHORITY: 1. SOP of the Station 2. Blotter Entry No. 0317‚ Page No. 137 dated October 15‚2013 II. MATTERS INVESTIGATED: 3. A case of Bank Robbery on complaint of Mr. Mario Mabuti‚ 33 years old‚ married Secretary of the bank
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Factors affecting the rate of reaction between a metal and an acid The rate of a reaction can be measured by the rate at which a reactant is used up‚ or the rate at which a product is formed. The temperature‚ concentration‚ pressure of reacting gases‚ surface area of reacting solids‚ and the use of catalysts‚ are all factors which affect the rate of a reaction. Individual properties of substances also affect reaction rates. The scope of these properties is broad and there are few generalizations
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Overthrow of Nazi Tyranny World War II left Europe devastated. The Nazi tyranny‚ unstoppable in its surge of power‚ left Europe ruined and put many countries in a state of bankruptcy. In the “King’s Speech” by King George VI‚ he seeks to commemorate all those who lost their lives fighting for their country’s freedom and to mark a new beginning of peace. World War II finally ended from 1939 to 1945. Hitler committed suicide‚ and the Germans surrendered. All the British people were celebrating the
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Investigating the water potential of a potato Aim Osmosis is the movement of water molecules from a region of high water concentration to a low water concentration through a semi-permeable membrane. Our aim is to investigate the water potential of a potato through osmosis‚ by finding the difference in weight before and after the potato has been set in a solution of water‚ sugar or salt. Trial Method Firstly we collected the equipment. This included a scalpel‚ potato cutter‚ and test tubes. Then
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it fun‚ exhilarating‚ and decently scary you also have to think about the scientific principles. As these will all be defined by Oxford’s dictionary. One of the most common scientific principles is kinetic energy. Kinetic energy is energy that an object possesses by virtue of being in motion. Kinetic energy increases as motion increases during the roller coaster ride. Potential energy is the energy of a body or a system with respect to the position of the body or the arrangement of particles in the
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Describe the difference between a mixture and a compound. A compound is a substance in which atoms of different elements are chemically held to one another. A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components‚ a compound cannot. Below are some examples of the differences between each. Compounds •Compounds are pure substances. •They are made up of two or more
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Calculating the Enthalpy Change of Reaction for the Displacement Reaction between Zinc and Aqueous Copper Sulphate Data Collection and Processing Observations: * Drops of water left on the inside of the measuring cylinder * Hole in the lid‚ possible escape route for gas or splash-back * The polystyrene cup felt warm during the reaction By extrapolating the graph we can estimate what the rise in temperature would have been if the reaction had taken place instantaneously. I can
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DEPARTMENT OF ECONOMICS Faculty of Arts The Maharaja Sayajirao University of Baroda Bachelor of Arts (Honours) Programme of Studies ECONOMICS 6-Semester Course 3 Credit Course per paper per semester Maximum 45 hours per paper Course Titles and Detailed Syllabi [w.e.f. 2013-2014] 1 Titles of Courses Semester Course No. Semester-01 CORE - 01 (04) ALLIED - 01 / 02 INTD ELCTV - 01 Semester-02 CORE - 02 (06) ALLIED - 03 / 04 INTD ELCTV - 02 FOUNDATION - 06 FOUNDATION - 07 Semester-03 CORE - 03 (07)
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Design lab for the rate of reaction between Mg and H2SO4 Introduction: Increasing the concentration (in moles) of H2SO4 will increase the rate of the reaction when a ribbon of Mg is added to the solution. The rate of the reaction all depends on how strong the concentration of the solution is. Research question: Does altering the concentration of H2SO4 increase the rate of reaction when a ribbon of Mg is mixed with the solution? Variables: Independent Variable: The concentration of
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