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    Exam 5: Thermochemistry
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    Which of the Following Has a Standard Enthalpy of Formation
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Which of the Following Has a Standard Enthalpy of Formation

Question 141

Question 141

Multiple Choice

Which of the following has a standard enthalpy of formation value (ΔH°f) of zero at 298 K?


A) H2O(g)
B) O(g)
C) H2O(l)
D) O2(g)
E) O3(g)

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