is -25.0 kJ per mol 02. In the compound ZO(e), Z has a +2 formal charge. Which of the following statements is CORRECT? O Zcannot be oxidized to ZO because Z is more stable than ZzO at 400 °C or any Tabove it. O zo cannot be reduced back to Z at any temperature because reduction of ZO to Z has +AG. O The oxidation of Z with O2 is exothermic. The oxidation of Z with 02 is marked by an increase in entropy.

is -25.0 kJ per mol 02. In the compound ZO(e), Z has a +2 formal charge. Which of the following statements is CORRECT? O Zcannot be oxidized to ZO because Z is more stable than ZzO at 400 °C or any Tabove it. O zo cannot be reduced back to Z at any temperature because reduction of ZO to Z has +AG. O The oxidation of Z with O2 is exothermic. The oxidation of Z with 02 is marked by an increase in entropy.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter19: The Representative Elements

Section: Chapter Questions

Problem 73AE

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The reaction of quicklime, CaO, with water produces slaked lime, Ca(OH)2, which is widely used in the construction industry to make mortar and plaster. The reaction of quicklime and water is highly exothermic: CaO(s)+H2O(l)Ca(OH)2(s)H=350kJmol1 (a) What is the enthalpy of reaction per gram of quicklime that reacts?. (b) How much heat, in kilojoules, is associated with the production of 1 ton of slaked lime?
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At 400 °C, the ΔG°rxn for the oxidation of a monoatomic liquid element Z in the presence of O2(g) forming ZO(s) is -25.0 kJ per mol O2. In the compound ZO(s), Z has a +2 formal charge. Which of the following statements is CORRECT? ZO cannot be reduced back to Z at any temperature because reduction of ZO to Z has +ΔG. Z cannot be oxidized to ZO because Z is more stable than 20 at 400 °C or any T above it The oxidation of Z with O2 is exothermic. The oxidation of Z with O2 is marked by an increase in entropy.
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