在理论上可用于设计原电池的化学反应是( )
A.2Al(s)+2NaOH(aq)+2H2O(1) = 2NaAlO2(ag)+3H2(g)△H <0 |
B.Ba(OH)2·8H2O(s)+2NH4Cl(s)= BaCl2(aq)+2NH3·H2O(aq)+8H2O(l) △H >0 |
C.CaC2(s)+2H2O(1) = Ca(OH)2(s)+C2H2(g)△H <0 |
D.HCl(aq)+NaOH(aq) = NaCl(aq) + 3H2O(l)△H <0 |
在理论上可用于设计原电池的化学反应是( )
A.2Al(s)+2NaOH(aq)+2H2O(1) = 2NaAlO2(ag)+3H2(g)△H <0 |
B.Ba(OH)2·8H2O(s)+2NH4Cl(s)= BaCl2(aq)+2NH3·H2O(aq)+8H2O(l) △H >0 |
C.CaC2(s)+2H2O(1) = Ca(OH)2(s)+C2H2(g)△H <0 |
D.HCl(aq)+NaOH(aq) = NaCl(aq) + 3H2O(l)△H <0 |