问题标题:
(1)K2Cr3O7+KI+H3PO4=K3PO4+I2+H2O+CrPO4(2)Cu2S+HNO3=NO+Cu(NO3)2+H2SO4(3)FeS+H2SO4=Fe2(SO4)3+SO2+H2O(4)NaSx+NaClO+NaOH=Na2SO4+NaCl+H2O(5)An+B^(x-)=A^(y-)+B^(m)(6)Cl^(m)+OH^(-)=ClO^(n-)+Cl^(-)+H2O(7)HClOm+Pn+H2O=
问题描述:
(1)K2Cr3O7+KI+H3PO4=K3PO4+I2+H2O+CrPO4
(2)Cu2S+HNO3=NO+Cu(NO3)2+H2SO4
(3)FeS+H2SO4=Fe2(SO4)3+SO2+H2O
(4)NaSx+NaClO+NaOH=Na2SO4+NaCl+H2O
(5)An+B^(x-)=A^(y-)+B^(m)
(6)Cl^(m)+OH^(-)=ClO^(n-)+Cl^(-)+H2O
(7)HClOm+Pn+H2O=HCl+H3PO4
后面几道是带未知数的有几道写几道把
第一提是K2Cr2O7
陈竹西回答:
K2Cr3O7应该是K2Cr2O7吧3K2Cr2O7+18KI+14H3PO4=2K3PO4+9I2+21H2O+6CrPO4(2)3Cu2S+22HNO3=10NO+6Cu(NO3)2+3H2SO4+16H2O(3)2FeS+10H2SO4=Fe2(SO4)3+9SO2+10H2O(4)Na2Sx+(3x+1)NaClO+(2x-2)NaOH...
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