my questions come from passage 17 of the AAMC Physical sciences practice items: #112- does Keq never change for a rx since it is a constant? i got confused b/c in #113, it says that a higher Keq would mean a higher yield. but i guess a higher yield does not mean a higher Keq??? #114- how do you go about figuring this one out? isn't something oxidized if the ratio of oxygens to hydrogens increases? #116- how come the answer here is temperature? how come B is wrong? thanks!