PLANNING Investigating the Kinetics of the reaction between Iodide ions and Peroxodisulphate (VI) ions By the use of an Iodine clock reaction I hope to obtain the length of time taken for Iodine ions (in potassium iodide) to react fully with Peroxodisulphate ions (in potassium Peroxodisulphate). I will do three sets of experiments changing first the concentration of iodide ions‚ then the concentration of Peroxodisulphate ions and finally the temperature of the solution in which the reaction is
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4.6.2 Class Diagram: • In software engineering‚ a class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system’s classes‚ their attributes‚ operations (or methods)‚ and the relationships among objects. • The class diagram is the main building block of object oriented modeling. • It is used both for general conceptual modeling of the systematic of the application‚ and for detailed modeling translating
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How to : Data Flow Diagrams (DFDs) Data Flow Diagrams (DFDs) Data flow diagram (DFD) is a picture of the movement of data between external entities and the processes and data stores within a system Order CUSTOMER Status Message Status Data 2.0 Shipping Confirmation In-Stock Request WAREHOUSE 1.0 Shipping Order Check Status Order Data D1 Pending Orders 3.0 Issue Status Messages Order Data Payment Invoice Manage Accounts Receivable 5.0 Accounting Data Accounts Receivable Data
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civilizations around the Mediterranean. However‚ study of this Bronze Age culture is hindered by the fact that we cannot read their early language the Minoans kept hundreds of documents such as inventories‚ but they may never be deciphered. Many theories exist on how these ancient Cretans were destroyed‚ including the link between the disappearance of the Minoans and the eruption of a volcano on the nearby ‘Thera’‚ an eruption that not only would have devastated the neighboring Crete but would “likely have
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and Diagrams Fortunately‚ Microsoft Office includes tools needed to word-process symbols‚ subscripts‚ equations and diagrams as standard components. These are used to prepare professional-looking documents complete with equations and diagrams when needed. The tools needed for word-processing equations and diagram are common to the Microsoft Office suite of software and can be accessed from Microsoft Word‚ Excel and PowerPoint. The document‚ Using Symbols‚ Subscripts‚ Equations and Diagrams in Reports
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Entity-Relationship (E/R) Model Dr P Sreenivasa Kumar Professor CS&E Dept I I T Madras Entity-Relationship (E/R) Model Widely used conceptual level data model • proposed by Peter P Chen in 1970s Data model to describe the database system at the requirements collection stage • high level description. • easy to understand for the enterprise managers. • rigorous enough to be used for system building. Concepts available in the model • entities and attributes of entities. • relationships between
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Why is there conflict with Iran? 1950-70’s the US supported the ______ or emperor of Iran. He was anti-____________ but he was a harsh ruler to the everyday Iranian. This leads to resentment against the US. 1979 there is the Islamic ______________‚ led by _______________________. Iranian revolutionaries took over _____ American hostages and held them for almost a year and a half. This led to social and political conflict between the US and Iran. Iran used to be a great empire and they wish to
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Explain why the Decree for the Protection of people and state was issued in February 1933 (12 marks) The Decree for the Protection of People and State‚ also known as the Reichstag Fire decree‚ was issued by the Hitler in February 1933 and was essentially a means for the Nazis to consolidate their power. The decree suspended many of the civil and political rights that had been brought about under the Weimer constitution. It restricted various liberties such as private telephone calls and allowed the
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Food Web Diagram Snake (D) Hawk (D) Coyote (D) Insects (C) Scorpion (C) Lizard (C) Quail (C) Mouse (C) Cactus (P) Grass (P) When you are explaining an ecosystem you have producers‚ consumers‚ and decomposers. Producers are the plants and the tress in the ecosystem that provide the energy to the ecosystem. As for the desert the producers are cactus and grass. The consumers of the ecosystem are in three different kinds‚ they are herbivores‚ carnivores‚ and omnivores. Herbivores are the consumers
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Hydrogen peroxide and iodide ions Aim: To determine the rate equation for the reaction between Hydrogen peroxide and iodide ions‚ and to investigate the effects of a catalyst and temperatures on the reaction and to derive the activation enthalpy. Background knowledge: 1Hydrogen peroxide reacts with iodide ions producing iodine‚ when in an aqueous acid solution. H2O2 (aq) + 2I- (aq) + 2H3O+(aq) I2 (aq) + 2H2O(l) To detect iodine you can look at the color shown by the addition of starch
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