Chemistry help? Please!!?

A

annieesq

New member
Of the reactions below, only __________ is not spontaneous.


1. Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (g)
2. Zn (s) + 2HI (aq) ZnI2 (aq) + H2 (g)
3. 2Al (s) + 6HBr (aq) 2AlBr3 (aq) + 3H2 (g)
4. 2Ni (s) + H2SO4 (aq) Ni2SO4 (aq) + H2 (g)
5. 2Ag (s) + 2HNO3 (aq) 2AgNO3 (aq) + H2 (g)
 
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