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P BLOCK ELEMENTS
Question #37771
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Question
Based on the data in Table 7.7, what is the standard enthalpy of formation (△fH) for H2Se?
A. −286 kJ mol⁻¹
B. −20 kJ mol⁻¹
C. +73 kJ mol⁻¹
D. +100 kJ mol⁻¹
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