Use standard enthalpies of formation to calculate the value of `Delta_(r )H^(Θ)` for the reaction
`2H_(2)S(g) + 3O_(2)(g) rarr 2H_(2)O(l) + 2SO_(2)(g)`

Explanation

To calculate the standard enthalpy change (Δ_rH°) for the reaction:

\[ 2H_{2}S(g) + 3O_{2}(g) \rightarrow 2H_{2}O(l) + 2SO_{2}(g) \]

we will use the standard enthalpies of formation (Δ_fH°) of the reactants and products.

### Step 1: Write down the standard enthalpies of formation for each compound.

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