scoring: your score will be based on the number of correct matches minus the number of incorrect matches. there is no penalty for missing matches. use the references to access important values if needed for this question. without doing any calculations, match the following thermodynamic properties with their appropriate numerical sign for the following exothermic reaction. H2(g) + C2H4(g)C2H6(g)
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Hrxn
Srxn
Grxn
Suniverse > 0
< 0
= 0
> 0 low T, < 0 high T
< 0 low T, > 0 high T