原電池講究的是半反應(yīng),中間用鹽橋連接,只要兩個半反應(yīng)電極電勢不同,那么反應(yīng)就會進(jìn)行.
1)Cu2+ + 2e-=Cu E=0.153V
H2-2e-=2H+ E=oV
2)氫同上
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