47. Of the elements shown in the Periodic Table, which is the most reactive? * III IV V VI VI| Ne I I Li P K а. Р b. Ne С. Li d. K 48. Which of the following elements is a non metal but was placed in group 1 in the periodic table of elements? * а. Berylium b. Hydrogen C. Lithium d. Sodium 49. Put the following in order of increasing atomic radius: Neon, Lithium, Carbon * He H. Periodic Table Showing Relative Sizes of the Atoms Be B Ne F Na Mg Al Si Se TI V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr RE Sr Y Zr Nb Mo Te Ru Rh Pd Ag Cd In Sn Sb Te Ba Lu Ta W Re Os Ir Pt Au Hg Pb Bi Po At Rn La Ce e Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Но Yb A Th PaU Np Pu Am Cm Bk Cf Es Fm Md No a. Lithium, Carbon, Neon b. Neon, Carbon, Lithium C. Lithium, Neon, Carbon d. Carbon, Lithium, Neon

47. Of the elements shown in the Periodic Table, which is the most reactive? * III IV V VI VI| Ne I I Li P K а. Р b. Ne С. Li d. K 48. Which of the following elements is a non metal but was placed in group 1 in the periodic table of elements? * а. Berylium b. Hydrogen C. Lithium d. Sodium 49. Put the following in order of increasing atomic radius: Neon, Lithium, Carbon * He H. Periodic Table Showing Relative Sizes of the Atoms Be B Ne F Na Mg Al Si Se TI V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr RE Sr Y Zr Nb Mo Te Ru Rh Pd Ag Cd In Sn Sb Te Ba Lu Ta W Re Os Ir Pt Au Hg Pb Bi Po At Rn La Ce e Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Но Yb A Th PaU Np Pu Am Cm Bk Cf Es Fm Md No a. Lithium, Carbon, Neon b. Neon, Carbon, Lithium C. Lithium, Neon, Carbon d. Carbon, Lithium, Neon

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter8: Bonding: General Concepts

Section: Chapter Questions

Problem 163CP: The compound hexaazaisowurtzitane is one of the highest-energy explosives known (C E News, Jan. 17,...

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The compound hexaazaisowurtzitane is one of the highest-energy explosives known (C E News, Jan. 17, 1994, p. 26). The compound, also known as CL-20, was first synthesized in 1987. The method of synthesis and detailed performance data are still classified because of CL-20s potential military application in rocket boosters and in warheads of smart weapons. The structure of CL-20 is In such shorthand structures, each point where lines meet represents a carbon atom. In addition, the hydrogens attached to the carbon atoms are omitted; each of the six carbon atoms has one hydrogen atom attached. Finally, assume that the two O atoms in the NO2 groups are attached to N with one single bond and one double bond. Three possible reactions for the explosive decomposition ofCL-20 are i. C6H6N12O12(s)6CO(g)+6N2(g)+3H2O(g)+32O2(g) ii. C6H6N12O12(s) 3CO(g) + 3CO2(g) + 6N2(g) + 3H2O(g) iii. C6H6N12O12(s) 6CO2(g) + 6N2(g) + 3H2 (g) a. Use bond energies to estimate E for these three reactions. b. Which of the above reactions releases the largest amount of energy per kilogram of CL-20?
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