理论上不能用于设计成原电池的反应是
| A．2H2(g)+O2(g)==2H2O(l)△H<0 |
| B．HCl(aq)+NaOH(aq)==NaCl(aq)+H2O(l)△H<0 |
| C．2Al(s)+3Cl2(g)==2AlCl3(s)△H<0 |
| D．Zn(s)+2HCl(aq)==ZnCl2+H2(g)△H<0 |
理论上不能用于设计成原电池的反应是
| A．2H2(g)+O2(g)==2H2O(l)△H<0 |
| B．HCl(aq)+NaOH(aq)==NaCl(aq)+H2O(l)△H<0 |
| C．2Al(s)+3Cl2(g)==2AlCl3(s)△H<0 |
| D．Zn(s)+2HCl(aq)==ZnCl2+H2(g)△H<0 |
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