MIXTURES‚ SOLUTIONS‚ SUSPENSIONS AND COLLOIDS MIXTURES A mixture is a combination made up of two or more different substances which are mixed but are not chemically bonded. There are also types of mixtures such as homogeneous mixtures and heterogeneous mixtures. SOLUTIONS A solution is defined as a homogeneous mixture composed of a solute; a substance dissolved into another substance known as a solvent. They can also be defined as groups of molecules that are mixed up completely in even
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Sarah Pikey Government Portageville Site The Common Assessment The Iron Triangle There are two parts to the Iron Triangle. The Bureaucracy which is the agencies that are responsible for the regulation of those affected industries. The Interests Groups influence Congressional votes in their favor. The last party of the Triangle is the Congress they are responsible for funding Government Programs. I will explain how the Triangle works using the article about farmers wanting to trade with Cuba
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SALT WATER Introduction: Salt water refers to water that contains dissolved salts‚ known as saline water or seawater‚ water from oceans or seas. It is a home to varieties of aquatic animals‚ for example‚ fishes and snails. Some of these animals find it difficult to live in fresh water. If salt water animals go to live in fresh water they can not adapt the environment led to die to them. This essay aims to discuss the importance of salt water and the sub- types namely ocean‚ sea‚ and coral reefs
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The Sands of Time by Sidney Sheldon. Back Cover. Four nuns find themselves suddenly thrust into a hostile world they long ago abandoned for the safety of the convent. Unwittingly they become pawns in a battle between the charismatic Jaime Miro‚ leader of the outlawed Basque nationalists‚ and the ruthless Colonel Ramon Acoea of the Spanish Army. FOUR WOMEN -AND THE MEN THEY ARE FORBIDDEN TO LOVE MEGAN the orphan‚ who feels an overpowering attraction to Jaime Miro LUCIA the fiery Sicilian
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| Separation of Nitrophenols | | | | Abstract: Using a micro scale steam distillation we separated ortho and para-nitrophenol from a mixture that was already made. After the para and ortho were separated we measured their melting points and compared it to the literature values for purity. For ortho-nitrophenol we had 60% recovery and for para 160% recovery. Our melting point ranges were ortho: 45-46°C and para 64-95°C. Introduction: Nitration: In phenols‚ -OH group strongly
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Introduction Extraction is a purification technique used in organic chemistry to separate compounds from a mixture of two or more compounds. There are three different extraction techniques: liquid-liquid extraction‚ solid-liquid extraction and chemically active extraction. All three types of extraction follow the same principle. Organic molecules dissolve in organic solvents and polar molecules dissolve in aqueous solvents. This phenomenon is observed because of the intermolecular forces between
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Manns 03/13/13 A Comparison of Iron Man 1 and Iron Man 2 Several superhero movies have been made but none have been as amazing and awesome as Iron Man 2‚ including Iron Man. The expectations of the first one were too high which made it hard for them to meet up to it. Since Iron Man failed at meeting its expectations the first time around‚ the expectations weren’t so high which made it easier for Iron Man 2 to meet it and surpass it. Iron Man 2 is much better than Iron Man because the setting‚ characters
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02TTB204 Mechanics of Solids Part B Lab Buckling of Struts 1. Introduction The task was given to obtain the buckling stresses for pin-ended steel struts of various slenderness ratios and compare with theoretical predictions obtained using the Euler and Rankine-Gordon equations. 2. Theory The method of obtaining the buckling stresses followed was to use data show in Appendix A. From the record of applied load‚ P‚ against deflection‚ δ‚ a Southwell plot of δ against
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Mayceemae M. Barnuevo CHEM 17.1 13L Group 1 February 7‚ 2014 February 19‚ 2014 Exercise 12 SOME INVESTIGATIONS ON THE CORROSION OF IRON I. Introduction Metals undergo natural destruction that allows a spontaneous deteriorating reaction where they return to their original state from where they are obtained upon contact with the surrounding‚ particularly when reacted to oxygen. Such phenomenon is known as corrosion (Zumdahl‚ 1998). This leads the surface of the materials to rust in due time. Usually
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Acid rain is a rain or any other form of precipitation that is unusually acidic‚ meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants‚ aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide‚ which react with the water molecules in the atmosphere to produce acids. Governments have made efforts since the 1970s to reduce the release of sulfur dioxide into the atmosphere with positive results. Nitrogen
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