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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781337399074
BuyFind

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781337399074

Solutions

Chapter
Section
Chapter 21, Problem 112GQ
Textbook Problem

Using enthalpy of formation data in Appendix L, determine whether the decomposition of NH4NO3(s) to give N2O(g) and H2O(g) is endothermic or exothermic.

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Chapter 21 Solutions

Chemistry & Chemical Reactivity
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Ch. 21.2 - Write balanced chemical equations for the...Ch. 21.2 - Write the formula for each of the following (a)...Ch. 21.2 - Identify a compound or ion of a second-period...Ch. 21.2 - Explain why compounds with the following formulas...Ch. 21.11 - If blood contains 50. ppb lead, how many atoms of...Ch. 21.11 - Research has found that port wine stored for a...Ch. 21.11 - Suppose you consume a 0.15-g chip of paint with...Ch. 21.11 - Draw the Lewis structure of ammonia borane. What...Ch. 21.11 - Calculate the mass of hydrogen in 1.00 kg of...Ch. 21.11 - What is the hydrogen density (mass H2 per liter)...Ch. 21.11 - The best catalysts used to accelerate the...Ch. 21.11 - Draw a Lewis structure for borazine. Note that the...Ch. 21 - Which of the following formulas is incorrect? (a)...Ch. 21 - The reaction of elemental phosphorus and excess...Ch. 21 - Like sulfur, selenium forms compounds in several...Ch. 21 - What is the highest oxidation state that antimony...Ch. 21 - Give examples of two basic oxides. Write equations...Ch. 21 - Give examples of two acidic oxides. Write...Ch. 21 - Give the name and symbol of each element having...Ch. 21 - Give symbols and names for four monatomic ions...Ch. 21 - Select one of the alkali metals, and write a...Ch. 21 - Select one of the alkaline earth metals and write...Ch. 21 - For the product of the reaction you selected in...Ch. 21 - For the product of the reaction you selected in...Ch. 21 - Would you expect to find calcium occurring...Ch. 21 - Which of the first 10 elements in the periodic...Ch. 21 - Place the following oxides in order of increasing...Ch. 21 - Place the following oxides in order of increasing...Ch. 21 - Complete and balance the equations for the...Ch. 21 - Complete and balance the equations for the...Ch. 21 - Which of the following elements does not react...Ch. 21 - Which of the methods below is the most suitable...Ch. 21 - Write balanced chemical dilutions for the reaction...Ch. 21 - Write an equation for the reaction of potassium...Ch. 21 - Write a balanced chemical equation for the...Ch. 21 - Using data in Appendix L, calculate rH, rG, and rS...Ch. 21 - A method recently suggested for the preparation of...Ch. 21 - Compare the mass of H2 expected from the reaction...Ch. 21 - Which of the following is not a property of...Ch. 21 - The compound Na2O2 consists of (a) two Na+ ions...Ch. 21 - Write equations for the reaction of sodium with...Ch. 21 - Write balanced equations for the reaction of...Ch. 21 - The electrolysis of aqueous NaCl gives NaOH, Cl2,...Ch. 21 - (a) Write equations for the half-reactions that...Ch. 21 - Which of the following insoluble calcium compounds...Ch. 21 - Calcium minerals are the raw materials for a...Ch. 21 - When magnesium bums in air, it forms both an oxide...Ch. 21 - Calcium reacts with hydrogen gas at 300400 C to...Ch. 21 - Name three uses of limestone. Write a balanced...Ch. 21 - Explain what is meant by hard water. What causes...Ch. 21 - Calcium oxide, CaO, is used to remove SO2 from...Ch. 21 - Ca(OH)2 has a Ksp of 5.5 105, whereas Ksp for...Ch. 21 - In terms of abundance of the elements in the...Ch. 21 - The element below aluminum in Group 3A is gallium,...Ch. 21 - Draw a possible structure for the cyclic anion in...Ch. 21 - The boron trihalides (except BF3) hydrolyze...Ch. 21 - When boron hydrides burn in air, the reactions are...Ch. 21 - Diborane can be prepared by the reaction of NaBH4...Ch. 21 - Write balanced equations for the reactions of...Ch. 21 - (a) Write a balanced equation for the reaction of...Ch. 21 - Aluminum dissolves readily in hot aqueous NaOH to...Ch. 21 - Alumina, Al2O3, is amphoteric. Among examples of...Ch. 21 - Aluminum sulfate is the most commercially...Ch. 21 - Aerated concrete bricks are widely used building...Ch. 21 - Elemental silicon is oxidized by O2 to give...Ch. 21 - Silicon and oxygen form a six-membered ring in the...Ch. 21 - Describe the structure of pyroxenes (see page...Ch. 21 - Describe how ultrapure silicon can be produced...Ch. 21 - Silicate structures: Draw a structure, and give...Ch. 21 - Silicates often have chain, ribbon, cyclic, or...Ch. 21 - Construct Lewis structures for the several...Ch. 21 - Which statement about ammonia is not correct? (a)...Ch. 21 - Consult the data in Appendix L. Are any of the...Ch. 21 - Use data in Appendix L to calculate the enthalpy...Ch. 21 - Use data in Appendix L to calculate the enthalpy...Ch. 21 - The overall reaction involved in the industrial...Ch. 21 - A major use of hydrazine, N2H4, is in steam...Ch. 21 - Before hydrazine came into use to remove dissolved...Ch. 21 - Review the structure of phosphorous acid in Table...Ch. 21 - Unlike carbon, which can form extended chains of...Ch. 21 - Which of the following is not a common oxidation...Ch. 21 - Which statement about oxygen is not true? (a)...Ch. 21 - In the contact process for making sulfuric acid,...Ch. 21 - A sulfuric acid plant produces an enormous amount...Ch. 21 - Sulfur forms anionic chains of S atoms called...Ch. 21 - Sulfur forms a range of compounds with fluorine....Ch. 21 - Which halogen has the highest bond dissociation...Ch. 21 - Which of the following statements is not correct?...Ch. 21 - The halogen oxides and oxoanions are good...Ch. 21 - The hypohalite ions, XO, are the anions of weak...Ch. 21 - Bromine is obtained from brine wells. The process...Ch. 21 - To prepare chlorine from chloride ion a strong...Ch. 21 - If an electrolytic cell for producing F2 (Figure...Ch. 21 - Halogens combine with one another to produce...Ch. 21 - In which of the following species is Xe in the + 4...Ch. 21 - Predict the electron pair geometry for the xenon...Ch. 21 - The standard enthalpy of formation of XeF4 is 218...Ch. 21 - Draw the Lewis electron dot structure for XeO3F2....Ch. 21 - Argon is present in dry air to the extent of 0.93%...Ch. 21 - The reaction of XeF6 with water gives a yellow...Ch. 21 - For each of the third-period elements (Na through...Ch. 21 - Consider the chemistries of C, Si, Ge, and Sn. (a)...Ch. 21 - Consider the chemistries of the elements...Ch. 21 - When BCl3 gas is passed through an electric...Ch. 21 - Complete and balance the following equations. (a)...Ch. 21 - (a) Heating barium oxide in pure oxygen gives...Ch. 21 - Worldwide production of silicon carbide, SiC, is...Ch. 21 - To store 2.88 kg of gasoline with an energy...Ch. 21 - Using data in Appendix L, calculate rG values for...Ch. 21 - Ammonium perchlorate is used as the oxidizer in...Ch. 21 - Metals react with hydrogen halides (such as HCl)...Ch. 21 - Halogens form polyhalide ions. Sketch Lewis...Ch. 21 - The standard enthalpy of formation of OF2 gas is +...Ch. 21 - Calcium fluoride can be used in the fluoridation...Ch. 21 - The steering rockets in space vehicles use N2O4...Ch. 21 - Use fH data in Appendix L to calculate the...Ch. 21 - Phosphorus forms an extensive series of oxoanions....Ch. 21 - A Boron and hydrogen form an extensive family of...Ch. 21 - In 1774, C. Scheele obtained a gas by reacting...Ch. 21 - The chemistry of gallium: (a) Gallium hydroxide,...Ch. 21 - Silicon-oxygen rings are a common structural...Ch. 21 - Using enthalpy of formation data in Appendix L,...Ch. 21 - Metal sulfides roasted in air produce metal...Ch. 21 - Metals generally react with hydrogen halides to...Ch. 21 - One material needed to make silicones is...Ch. 21 - Sodium borohydride, NaBH4, reduces many metal ions...Ch. 21 - A common analytical method for hydrazine involves...Ch. 21 - When 1.00 g of a white solid A is strongly heated,...Ch. 21 - In 1937, R. Schwartz and M. Schmiesser prepared a...Ch. 21 - A mixture of PC15 (12.41 g) and excess NH4Cl was...Ch. 21 - Dinitrogen trioxide, N2O3, has the structure shown...Ch. 21 - The density of lead is 11.350 g/cm3, and the metal...Ch. 21 - How would you extinguish a sodium fire in the...Ch. 21 - Tin(IV) oxide, cassiterite, is the main ore of...Ch. 21 - You are given a stoppered flask that contains...Ch. 21 - The structure of nitric acid is illustrated on...Ch. 21 - The reduction potentials for the Croup 3A metals,...Ch. 21 - (a) Magnesium is obtained from seawater. If the...Ch. 21 - Comparing the chemistry of carbon and silicon. (a)...Ch. 21 - Boron nitride, BN, has the same solid state...Ch. 21 - Xenon trioxide, XeO3, reacts with aqueous base to...

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