For this problem, analyze each choice and determine the correct statement for the given reaction:
2 Mg (s) + O2 (g) → 2 MgO (s) ΔH = -1204 kJ
a. This reaction is endothermic.
Consider the following reaction:
2Mg(s) + O2(g)→ 2MgO(s) ΔH = -1204 kJ
Which of the following statements is true?
a) This reaction is endothermic.
b) This reaction represents the formation reaction for MgO and ΔHfo (MgO) = -1204 kJ.
c) When 3.55g Mg reacts at constant pressure, the heat transferred is -87.9 kJ.
d) When 40.3g MgO(s) is decomposed into Mg(s) and O2 at constant pressure, 1204 kJ is absorbed.
e) All reactants and products are not in their standard state.
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