Hess's law

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The table below contains information about four different reactions, labeled W, X, Y, and Z.

$Reaction$ ?	$Equation$ ?	$\begin{aligned} Δ H ° \\ ({kJ/mol}_{r x n}) \end{aligned}$ ?
W	$N_{2} (g) + 3 H_{2} (g) \to 2 NH_{3} (g)$ ?	$? 92$ ?
X	$2 H_{2} (g) + O_{2} (g) \to 2 H_{2} O (l)$ ?	$? 572$ ?
Y	$N_{2} (g) + 2 O_{2} (g) \to 2 NO_{2} (g)$ ?	$66$ ?
Z	$2 NH_{3} (g) + 4 H_{2} O (l) \to 2 NO_{2} (g) + 7 H_{2} (g)$ ?	$?$ ?

Using the information above, determine the value of ${Δ H °}_{r x n}$ ? for reaction Z.
Write your answer to the ones place.

{kJ/mol}_{r x n}

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