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Chemistry
- Write chemical equations for each of the following chemical and physical processes: (a) Reaction of ammonia gas with hydrogen chloride gas to produce a solid product (b) Reaction of 1 mole of aluminum with I2(s) to form aluminum iodide (c) Conversion of 1 mole of O2(g) to O3(g) (d) Dissolving K2C12O7(s) in water (e)Thermal decomposition of solid sodium azide to produce solid sodium and nitrogen gas (f) Photodissociation of chlorine gas (g) Fusion of icearrow_forwardWhich of the following is true of the reaction 2H2O(g) -> 2H2(g) + O2(g) ?arrow_forwardlodine pentoxide, I₂O5, is a white crystalline solid. It is formed by heating HIO, to about 200 °C in a stream of dry air. The reaction is shown below. 2HIO₂ (s) 1₂0,(s) + H₂O(g)arrow_forward
- A scrubber removes the sulfur dioxide from the exhaust gas before it is emitted from a power plant stack. Which of the following compounds is used in the scrubbing process? Question 13 options: A) Powdered limestone B) Solid slaked lime C) Aqueous potash D) Powdered gypsum E) Solid graphitearrow_forward1.How many liters does 194.82 grams of CBr4 occupy at STP? 2.How much energy in kJ is released when 11.23 g of aluminum react with an excess of copper oxide? 3 CuO + 2 Al -> 3 Cu + Al2O3 △ H = 1190 kJ/molarrow_forwardThe extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina and water: 2 Al(OH)3(s) → Al2O3(s) + 3 H₂O(g) In the second step, alumina and carbon react to form aluminum and carbon dioxide: 2 Al₂O3(s) + 3 C(s)→4 Al(s) + 3 CO₂(g) Write the net chemical equation for the production of aluminum from aluminum hydroxide and carbon. Be sure your equation is balanced.arrow_forward
- Looking up one snowy afternoon from a book titled The Moral Case Against Turning Lead Into Gold (Or Vice Versa), your friend Maria (an expert chemist) says this: "Metal sulfides roasted with oxygen produce the corresponding oxide and sulfur dioxide gas." Using Maria's statement, and what you already know about chemistry, predict the products of the following reaction. Be sure your chemical equation is balanced! NiS (s) + O₂(g) → 0-0 0+0 X 00 NO REACTION Sarrow_forwardWrite the balanced chemical equation for conversion of Al(s) to KAl(SO4)2·12H2O(s) in aqueous solution.arrow_forwardThe extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina and water: 2 A1(OH)3 (s)-Al₂O₂ (s) + 3 H₂O(g) In the second step, alumina and carbon react to form aluminum and carbon dioxide: 2 Al₂O3(s) + 3 C(s) +4 Al(s) +3 CO₂(g) Write the net chemical equation for the production of aluminum from aluminum hydroxide and carbon. Be sure your equation is balanced. ローロ X 00arrow_forward
- Answer the questions in the table below about the shape of the borane (BH3) molecule. How many electron groups are around the central boron atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central boron atom? (You may need to use the scrollbar to see all the choices.) (choose one) X G <arrow_forwardUpon heating 144 g MgSO4 · 7 H2O:(a) how many grams of water can be obtained? (b) how many grams of anhydrous compound can be obtained?arrow_forwardAutomakers are always investigating alternative reactions for the generation of gas to inflate air bags, in part because the sodium produced in the decomposition of NaN3 presents safety concerns. One system that has been considered is the oxidation of graphite by strontium nitrate, Sr(NO3)2, as shown in the equation below. 5 C(s) + 2 Sr(NO3)2 (8)→ 2 SrO(s) + 2 N₂(g) + 5 CO₂(g) Suppose that a system is being designed using this reaction, and the goal is to generate enough gas to inflate a bag to 63 L and 1.4 atm at 23°C. What is the minimum mass of graphite that should be used in the design of this system? g C(s)arrow_forward
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