Chemistry & Chemical Reactivity
9th Edition
ISBN: 9781133949640
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Textbook Question
Chapter 21, Problem 41PS
Describe the structure of pyroxenes (see page 986). What is the ratio of silicon to oxygen in this type of silicate?
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Chapter 21 Solutions
Chemistry & Chemical Reactivity
Ch. 21.2 - Prob. 1CYUCh. 21.2 - Write the formula for each of the following (a)...Ch. 21.2 - Prob. 3CYUCh. 21.2 - Prob. 4CYUCh. 21.4 - Prob. 3RCCh. 21.5 - Prob. 1QCh. 21.5 - Prob. 2QCh. 21.8 - Prob. 1QCh. 21.8 - Prob. 2QCh. 21.8 - Prob. 3Q
Ch. 21.8 - Prob. 4QCh. 21.8 - Prob. 3RCCh. 21.11 - Prob. 1QCh. 21.11 - Prob. 2QCh. 21 - Give examples of two basic oxides. Write equations...Ch. 21 - Prob. 2PSCh. 21 - Prob. 3PSCh. 21 - Prob. 4PSCh. 21 - Prob. 5PSCh. 21 - Prob. 6PSCh. 21 - For the product of the reaction you selected in...Ch. 21 - For the product of the reaction you selected in...Ch. 21 - Prob. 9PSCh. 21 - Prob. 10PSCh. 21 - Place the following oxides in order of increasing...Ch. 21 - Place the following oxides in order of increasing...Ch. 21 - Prob. 13PSCh. 21 - Prob. 14PSCh. 21 - Prob. 15PSCh. 21 - Prob. 16PSCh. 21 - Prob. 17PSCh. 21 - Prob. 18PSCh. 21 - Prob. 19PSCh. 21 - Prob. 20PSCh. 21 - Prob. 21PSCh. 21 - Write balanced equations for the reaction of...Ch. 21 - Prob. 23PSCh. 21 - (a) Write equations for the half-reactions that...Ch. 21 - When magnesium bums in air, it forms both an oxide...Ch. 21 - Prob. 26PSCh. 21 - Prob. 27PSCh. 21 - Prob. 28PSCh. 21 - Calcium oxide, CaO, is used to remove SO2 from...Ch. 21 - Prob. 30PSCh. 21 - Prob. 31PSCh. 21 - The boron trihalides (except BF3) hydrolyze...Ch. 21 - When boron hydrides burn in air, the reactions are...Ch. 21 - Prob. 34PSCh. 21 - Write balanced equations for the reactions of...Ch. 21 - Prob. 36PSCh. 21 - Prob. 37PSCh. 21 - Alumina, Al2O3, is amphoteric. Among examples of...Ch. 21 - Prob. 39PSCh. 21 - Prob. 40PSCh. 21 - Describe the structure of pyroxenes (see page...Ch. 21 - Describe how ultrapure silicon can be produced...Ch. 21 - Prob. 43PSCh. 21 - Prob. 44PSCh. 21 - Prob. 45PSCh. 21 - Prob. 46PSCh. 21 - Prob. 47PSCh. 21 - The overall reaction involved in the industrial...Ch. 21 - Prob. 49PSCh. 21 - Prob. 50PSCh. 21 - Prob. 51PSCh. 21 - Prob. 52PSCh. 21 - Prob. 53PSCh. 21 - Prob. 54PSCh. 21 - Prob. 55PSCh. 21 - Sulfur forms a range of compounds with fluorine....Ch. 21 - The halogen oxides and oxoanions are good...Ch. 21 - Prob. 58PSCh. 21 - Bromine is obtained from brine wells. The process...Ch. 21 - Prob. 60PSCh. 21 - Prob. 61PSCh. 21 - Halogens combine with one another to produce...Ch. 21 - The standard enthalpy of formation of XeF4 is 218...Ch. 21 - Draw the Lewis electron dot structure for XeO3F2....Ch. 21 - Prob. 65PSCh. 21 - Prob. 66PSCh. 21 - Prob. 67GQCh. 21 - Prob. 68GQCh. 21 - Consider the chemistries of the elements...Ch. 21 - When BCl3 gas is passed through an electric...Ch. 21 - Prob. 71GQCh. 21 - Prob. 72GQCh. 21 - Prob. 73GQCh. 21 - Prob. 74GQCh. 21 - Prob. 75GQCh. 21 - Prob. 76GQCh. 21 - Prob. 77GQCh. 21 - Prob. 78GQCh. 21 - Prob. 79GQCh. 21 - Prob. 80GQCh. 21 - Prob. 81GQCh. 21 - Prob. 83GQCh. 21 - Prob. 84GQCh. 21 - A Boron and hydrogen form an extensive family of...Ch. 21 - In 1774, C. Scheele obtained a gas by reacting...Ch. 21 - What current must be used in a Downs cell...Ch. 21 - The chemistry of gallium: (a) Gallium hydroxide,...Ch. 21 - Prob. 89GQCh. 21 - Prob. 90GQCh. 21 - Prob. 91GQCh. 21 - Prob. 92GQCh. 21 - Prob. 93ILCh. 21 - Prob. 94ILCh. 21 - Prob. 95ILCh. 21 - Prob. 96ILCh. 21 - Prob. 97ILCh. 21 - Prob. 98ILCh. 21 - Prob. 99SCQCh. 21 - Prob. 100SCQCh. 21 - Prob. 101SCQCh. 21 - Prob. 102SCQCh. 21 - Prob. 103SCQCh. 21 - Prob. 104SCQCh. 21 - Prob. 105SCQCh. 21 - Prob. 106SCQCh. 21 - Prob. 107SCQCh. 21 - Prob. 108SCQCh. 21 - Prob. 109SCQCh. 21 - Prob. 110SCQCh. 21 - Comparing the chemistry of carbon and silicon. (a)...Ch. 21 - Prob. 112SCQCh. 21 - Xenon trioxide, XeO3, reacts with aqueous base to...
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- 4.48 Elemental phosphorous is used in the semiconductor industry. It can be obtained from an ore called fluoroapatite via reaction with SiO2 and C: 4Ca5( PO4)3F+18SiO2+30C3P4+30CO+18CaSiO3+2CaF2 Suppose a particular semiconductor production plant requires 1500 kg of P4. If the recovery of P4 from this reaction is 73% efficient, what mass of fluoroapatite is needed?arrow_forwardPhosphorous acid, H3PO3, is oxidized to phosphoric acid, H3PO4, by nitric acid, which is reduced to nitrogen monoxide, NO. Write the balanced equation for this reaction.arrow_forwardAlumina, Al2O3, is amphoteric. Among examples of its amphoteric character are the reactions that occur when Al2O3 is heated strongly or fused with acidic oxides and basic oxides. (a) Write a balanced equation for the reaction of alumina with silica, an acidic oxide, to give aluminum metasilicate, Al2(SiO3)3. (b) Write a balanced equation for the reaction of alumina with the basic oxide CaO to give calcium aluminate, Ca(AlO2)2.arrow_forward
- Define the bonding that exists in metals and how this model explains some of the unique physical properties of metals. What are metal alloys? Identify the two main types of alloys, and describe how their structures differ. Give several examples of each type of alloy.arrow_forwardTourmaline is the most colorful of all gemstones. It neutralizes negative forces and offers emotional stability. It is crystalline boron silicates compounded with metals such as Mg, Fe, Al, Na and Li. The three most well-known minerals of tourmaline are: Elbaite Na(LiAl2)Al6Si6O18(BO3)3(OH)4 Schorl Na(Fe3)Al6(BO3)3Si6O18(OH)4 Dravite Na(Mg3)Al6(BO3)3Si6O18(OH)4 On a basis of 1000 kg of tourmaline rocks containing 25% Elbaite, 35% Schorl, 30% Dravite and 10% inerts, calculate the following: a) kg-mol Elbaite b) % by wt BO3 in tourmaline rocksarrow_forwardTourmaline is the most colorful of all gemstones. It neutralizes negative forces and offers emotional stability. It is crystalline boron silicates compounded with metals such as Mg, Fe, Al, Na and Li. The three most well-known minerals of tourmaline are: Elbaite Na(LiAl2)Al6Si6O18(BO3)3(OH)4 Schorl Na(Fe3)Al6(BO3)3Si6O18(OH)4 Dravite Na(Mg3)Al6(BO3)3Si6O18(OH)4 On a basis of 1000 kg of tourmaline rocks containing 25% Elbaite, 35% Schorl, 30% Dravite and 10% inerts, calculate the following: a) kg Fe b) total kg-atom O and kg-mol O2 in the three minerals c) total number of Mg atoms in the rocksarrow_forward
- The percent yield in the direct reaction of silicon with Cl2 to form SiCl₄ is 62%. Calculate the mass (in grams) of SiCl₄ obtained in the reaction of 3.1 g of silicon with excess chlorine?arrow_forwardSketch the structure of a 1:1 and 2:1 layer silicates.arrow_forwardWhat is the lewis structure for SiO2?arrow_forward
- Solid molybdenum(VI) oxide reacts with gaseous xenon difluoride to form liquid molybdenum(VI) fluoride, xenon gas, and oxygen gas. Write the Qc for this reaction.arrow_forward1000 kg of calcium phosphate is made to react with 10% excess silica, SiO2 and 90% excess carbon to produce 100 kg of phosphorous. The other products are calcium silicate and carbon dioxide. a) What is the degree of completion of the reaction?b) Illustrate the Law of Conservation of Mass.arrow_forwardGeosciences are very versatile. This fact rests on the finding that the number of silicate minerals that make up this planet is huge. a) By means of a reaction sequence based on Lewis structures show the step-by-step formation of a tricyclosilicate starting from silicic acid, Si(OH)4! b) Explain based on your answer from Part a) why this already offers the chance to hundreds of different minerals!arrow_forward
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