Chemical Nomenclature refers to the naming systems used with chemical formulas. This worksheet focuses on the most basic chemicals and nomenclature systems. Please read the information concerning each problem set and then attempt the problems associated with that information. The simplest compounds contain just two elements. Sodium chloride‚ NaCl‚ is an example of a binary compound. Several other examples are listed below. Potassium bromide KBr Calcium bromide CaBr2 Lithium fluoride LiF
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In the first reaction‚ magnesium was burned to produce magnesium oxide. The reaction produced a bright light‚ which is evidence of a chemical change. The second reaction occurred as a result of solid magnesium reacting with hydrochloric acid. The reaction produced heat and bubbles‚ both indications of a chemical change. A wood splint was used to determine that the gas produced was hydrogen gas‚ hence the other product is magnesium dichloride. In the third reaction‚ ammonium carbonate was heated to
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INTRODUCTION TO CHEMICAL BONDS CHEMICAL BOND Definition: A chemical bond is defined as a force that acts between two or more atoms to hold them together as a stable molecule. Main types of bond: 1. Ionic or electrovalent bond‚ 2. Covalent bond‚ 3. Coordinate covalent bond Forth type of bond: Metallic bond: The type of bonding which holds the atoms together in metal crystal. Valence electron: The electrons in the outer most energy level in an atom that takes part in chemical bonding
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Chemical bond From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds"
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Chemical Bonding Chemical compounds are formed by the joining of two or more atoms. A stable compound occurs when the total energy of the combination has lower energy than the separated atoms. The bound state implies a net attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent Bonds Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms‚ in contrast to the transfer of electrons in ionic bonds. Such bonds lead
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“John Montague expresses his themes in a clear and precise fashion” You have been asked by your local radio station to give a talk on the poetry of John Montague. Write out the text of the talk you would deliver in response to the above title. You should refer to both style and subject matter. Support the points you make by reference to the poetry on your course. Good evening listeners and welcome to our Friday night poetry segment‚ Poetry Aloud. Tonight we will explore the works of the famous northern
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2013 Palmitos‚ Isabel Experiment # 2 chemical changes I. INTRODUCTION Chemical changes occur when a substance combines with another to form a new substance whether by combination reaction‚ combustion reaction‚ decomposition reaction and etc. These changes can be observed by evolutions of gas‚ appearance or disappearance of a precipitate‚ evolution or absorption of heat or even change in color. This experiment aims to observe the different chemical changes copper undergoes in different conditions
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VB Background on Company Known as one Australia’s favrouite full strength beer‚ Victroia Bitter or ‘VB’ has preluded to become Australia’s Blue Collar beer‚ or ‘the tradies beer’. Victoria Bitter is a part of the ‘foster’s group’ which is the leading aclohol company in Australia and the Pacific. Dating back to the 1890s‚ Style: full strength bitter lager Alcohol: 4.6% Carbs: 3 grams/100mL Energy: 165 kilojoules/100mL; 39 calories/100mL Standard drinks: 1.4 per 375mL‚ 2.8 per 750mL
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binding contract under the Residential Tenancies Act 1997‚ so please read all terms and conditions carefully. • If you need advice on your rights and responsibilities‚ please call the Consumer Affairs Victoria Helpline on 1300 55 81 81 before signing the Agreement. • Both the landlord and tenant should keep signed copies of the completed Agreement for future reference. The landlord must supply the tenant with a copy of the completed Agreement within 14 days of the tenant signing. • This Agreement is
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The hypothesis If a chemical reaction occurs‚ then there will be indicators of a chemical change‚ was supported throughout this experiment. Throughout this experiment there were several reactions that took place‚ and an indicator of such chemical reactions could be seen throughout each one. The first piece of identifiable evidence was present in the first step‚ which was when copper (II) nitrate and sodium hydroxide were combined. When stirred‚ a blue precipitate formed at the bottom of the test
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