Напишите уравнения реакций:
Na--NaH--NaOH--HCOONa--NaCl--NaHSP4--Na2SO4--NaI--NaOH
2Na+H2=2NaHNaH+H2O=NaOH+H2NaOH+HCOOH=HCOONa+H2O2HCOONa+CaCl2=(HCOO)2Ca+2NaClNaCL+H2SO4=NaHSO4+HClNaHSO4+NaOH=Na2SO4+H2ONa2SO4+BaI2=BaSO4+2NaI2NaI+2H2O=2NaOH+I2+H2
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