The initial concentrations of I2,Cl2 and ICl in the following reaction were all 0.400 M.
Kc = 81.9. I2(g) + Cl2(g) <> 2 ICl (g)
1. Which of the following expresses the equilibrium concentration of ICl in terms of x. Assume x to be the absolute value of the change in the concentration of I2.
A. 0.400 − 2 xB. 0.400 + 2 xC. 0.400 − xD. 0.400 + x

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°

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