7.反应2H2O()2H2(g) O2(g)的△H=571.66kJ/mol,则△H(H2O,1)为 7.反应2H2O()2H2(g) O2(g)的△H=571.66kJ/mol,则△H(H2O,1)为 发布时间:2025-06-20 15:39:21