Hydrochloric acid + Magnesium Magnesium Chloride + Hydrogen 2HCl(aq) + 2Mg(s) 2MgCl(aq) + H2(g) Sulphuric acid + Zinc Zinc Sulphate + Hydrogen H2SO4(aq) + Zn(s) ZnSO4(aq) + H2(g) Nitric acid + Aluminium Aluminium Nitrate + Hydrogen 2HNO3(aq) + 2Al(s) 2AlNO3(aq) + H2(g) 2. ACID + BASE –––––––> SALT + WATER Hydrochloric acid + Copper II Oxide Copper II Chloride + Water HCl(aq) + CuO(s) CuCl(aq) + H2O(l) Nitric acid + Aluminium Oxide Aluminium Nitrate
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1.Tetrapyrrole Compound (Berg‚ 2009) Figure 2.Pyrrole (de Man‚ 1999) 2 Chlorophyll groups 2.1 Definition and structures Chlorophylls are tetrapyrrole pigments in which the porphyrin ring is in the dihydro form and the central metal atom is magnesium. They are green pigments responsible for the color of leafy vegetables and some fruits. Chlorophylls are diesters of a dicarboxylic acid (chlorophyllin)‚ where one group is esterified with methanol at C-3‚ while the other is esterified with a phytyl
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extremely reactive chemical compounds used in the synthesis of hydrocarbons‚ alcohols‚ carboxylic acids‚ and other compounds. A gringard reagent is an organic magnesium halide dissolved in a nonreactive solvent (like diethyl ether). The substance is made up of an organic group joined by a high polar covalent bond to magnesium‚ while magnesium is joined by an ionic bond to a halogen (like bromide) a gringard reagent will react with water‚ oxygen or almost any other electrophilic organic compound to
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nitrogen oxides (NOx) are released into the atmosphere‚ undergo chemical transformations and are absorbed by water droplets in clouds. The term "acid rain" is used more generally to include all forms of acid deposition. That Acid rain is one of the most dangerous man-made disasters which forms environmental threats is a fact that makes each individual concerns about its stages‚ causes and effects. The first stage of acid rain formation is produced when sulfur dioxide (SO2) and nitrogen oxides (NOx)
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BALANCE EACH EQUATION BEFORE SOLVING ANY PROBLEMS. SHOW ALL WORK. 1. ___Cu + ___O2 ___CuO a. If 101 grams of copper is used‚ how many moles of copper (II) oxide will be formed? b. If 5.25 moles of copper are used‚ how many moles of oxygen must also be used? c. If 78.2 grams of oxygen react with copper‚ how many moles of copper (II) oxide will be produced? 2. ___C4H10 + ___O2 ___CO2 + ___H2O a. How many moles of butane‚ C4H10‚ are needed to react with 5.5 moles of oxygen? b. How many
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_________________ PERFORMANCE GOALS: 1. To learn how to use of a calorimeter 2. To learn how to collect and manipulate data in the computer 3. To calculate the calorimeter constant 4. To use Hess’ Law to find the heat or formation of magnesium oxide CHEMICAL OVERVIEW: • Enthalphy: (ΔH) : when chemical or physical changes occur at a constant pressure. • Calorimeter: is an instrument with insulating walls where the reaction happens. Eq. 1: q rxn = -qsurrounding
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Chemistry Notes Oxides Oxides are used to determine whether an element is a metal or a non-metal. Most non-metals are classed as acidic oxides. While most metals are classed as basicoxides. Acidic Oxides * Reacts with water to form acids * Neutralises alkaline solution to form salt + water Basic Oxides * Neutralises acidic solutions to form salt + water Amphoeteric Oxides * These are non-metals which display both acidic and basic properties Alkaline Oxides * Reacts with
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dioxide and the calcium carbonate - Soap and detergents o Used as a base in soap and detergents. It is also used to make sodium phosphate and sodium silicate that act as builders - Softening hard water o The carbonate ions precipitate calcium and magnesium ions‚ this is why it is used in some soaps and detergents - Baking soda production o Sodium hydrogen carbonate or bicarbonate of soda is produced as a part of the process. o The sodium carbonate is dissolved to make a concentrated solution and
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Source 1 Hotbox Food would like to present a line of delicious beverages in completely self heating cans. Thanks to these innovative containers called “Hotshots”‚ it is now possible to drink high quality beverages at any time and at any place. Neither an external heat source‚ nor any other cooking utensils are required. Drinks 2go recipes do not contain additives‚ preservatives‚ artificial colorings or any raw materials obtained from GMO (Genetically Modified Organisms). Source 2 In one version
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In the Chapter on Acids & Bases‚ we learned that Magnesium Hydroxide Mg(OH)2‚ an Basic Oxide is used to make toothpaste. After each meals‚ there will certainly be a significant amount of food substances that are stuck in-between our teeth. Overnight‚ bacteria in these food substances will secrete acids that will corrode our teeth and causes tooth decay. Magnesium Hydroxide(an Basic Oxide) has the basic properties and will neutralize the acids between the teeth to form neutral salt and water‚ which
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