CO₂(g) + 2H₂O(l) → CH₄(g) + 2O₂(g). This is an example of a formation reaction in the standard state.

Name: CO 2 (g) + 2H 2 O(l) → CH 4 (g) + 2O 2 (g). This is an example of a formation reaction in the standard state.
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Quizplus · Accepted Answer

This is an example of a decomposition reaction, not a formation reaction. Formation reactions typically involve the creation of a compound from its constituent elements in their standard states.

CO2(g) + 2H2O(l) → CH4(g) + 2O2(g)

CO₂(g) + 2H₂O(l) → CH₄(g) + 2O₂(g)