Use the information given below to calculate the enthalpy change for the reaction: C2H4(g) + H2O(g) → C2H5OH(l)

Rxn 1 H2O(l) → H2O(g) ΔH1 = +44 kJ/mol

Rxn 2 C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)

ΔH2 = −1371 kJ/mol

3O2(g) → 2CO2(g) + 3H2O(l)

ΔH2 = −1371 kJ/mol C2H5OH(l)

Rxn 3 C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(l)

ΔH3 = −1409 kJ

a. they are both space stations

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oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

there are two significant figures.