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Reaction Enthalpy Comparison

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Enter species formula
Reactants Products
Formula Name CAS no. Formula Name CAS no.
Rules for chemical formulas
Enter a sequence of element symbols followed by numbers to specify the amounts of desired elements (e.g., C6H6).
Elements may be in any order.
If only one of a given atom is desired, you may omit the number after the element symbol.
Parentheses may be used to group atoms.
Multiple specifications for an atom will be added. This means that CH3(CH2)4CH3 will be treated the same as C6H14.
The reaction enthalpy pages only work with neutral species in their ground electronic state.