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10 cards from this deck
Energy cannot be created or destroyed, only transformed
ΔH\Delta HΔH same regardless of pathway taken
Calculate ΔH\Delta HΔH for hard-to-measure reactions
Sign changes (negative becomes positive & vice versa)
Double the ΔH\Delta HΔH value
Halve the ΔH\Delta HΔH value
Visual tools showing energy changes in reactions
Independent of pathway (key Hess's law principle)
−786-786−786 kJ mol−1^{-1}−1 (for 2 mol)
Conservation of energy principle
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