(制得粗硅)Si+2NaOH+H2O===Na2SiO3+2H2↑3．（碱中）歧化Cl2+H2O===HCl+HClO（加酸抑制歧化,加碱或光照促进歧化）Cl2+2NaOH===NaCl+NaClO+H2O2Cl2+2Ca(OH)2===CaCl2+Ca(ClO)2+2H2O金属单质（Na,Mg,Al,Fe）的还原性4N...