Hess' Law is useful because it tells us that?

Guil Lowtine

New member
Hess' Law is useful because it tells us that

?E = 0.
q is a constant.
?H = ?E.
work is zero.
?Hrxn is the same regardless of if the reaction is carried out in a single step or carried out in a series of steps.

please and thank you :D
 
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