Đáp án:
Giải thích các bước giải:
a,
`2NaCl + 2H_2O \overset{\quad \text{điện phân dung dịch có màng ngăn}\quad }\to 2NaOH + Cl_2\uparrow + H_2\uparrow`
`3Cl_2 + 2Fe \overset{t^o}\to 2FeCl_3`
`FeCl_3 + 3NaOH \to Fe(OH)_3\downarrow + 3NaCl`
`2NaCl + H_2SO_4 \to Na_2SO_4 + 2HCl`
`2HCl + CuO \to CuCl_2 + H_2O`
`CuCl_2 + 2AgNO_3 \to Cu(NO_3)_2 + 2AgCl\downarrow`
b,
`CaCO_3 + 2HCl \to CaCl_2 + CO_2\uparrow + H_2O`
`CaCl_2 + Na_2CO_3 \to CaCO_3\downarrow + 2NaCl`
`2NaCl + 2H_2O \overset{\quad \text{điện phân dung dịch có màng ngăn}\quad }\to 2NaOH + Cl_2\uparrow + H_2\uparrow`
`2NaOH + Cl_2 \to NaCl + NaClO + H_2O`
`NaClO + 2HCl \to NaCl + Cl_2\uparrow + H_2O`
`2NaCl \overset{\quad \text{điện phân nóng chảy}\quad }\to 2Na\downarrow + Cl_2\uparrow`
`3Cl_2 + 2Fe \overset{t^o}\to 2FeCl_3`
`FeCl_3 + 3AgNO_3 \to 3AgCl\downarrow + Fe(NO_3)_3`
c,
`2KMnO_4 + 16HCl \to 2KCl + 2MnCl_2 + 5Cl_2\uparrow + 8H_2O`
`3Cl_2 + 6KOH \to 5KCl + KClO_3 + 3H_2O`
`2KClO_3 \overset{t^o}\to 2KCl + 3O_2\uparrow`
`2KCl + H_2SO_4 \to K_2SO_4 + 2HCl`
`2HCl + CuO \to CuCl_2 + H_2O`
`CuCl_2 + 2AgNO_3 \to Cu(NO_3)_2 + 2AgCl\downarrow`
`2AgCl \overset{\quad \text{điện phân nóng chảy}\quad }\to 2Ag\downarrow + Cl_2\uparrow`
`Cl_2 + Ca(OH)_2 \to CaOCl_2 + H_2O`
d,
`3Cl_2 + 6KOH \to 5KCl + KClO_3 + 3H_2O`
`2KClO_3 \overset{t^o}\to 2KCl + 3O_2\uparrow`
`2KCl + 2H_2O \to 2KOH + Cl_2\uparrow + H_2\uparrow`
\(Cl_2 + H_2 \xrightarrow{\quad t^o,\ \text{ánh sáng}\quad } 2HCl\)
`2HCl + Fe \to FeCl_2 + H_2\uparrow`
`2FeCl_2 + Cl_2 \overset{t^o}\to 2FeCl_3`
\(\boxed{\text{LOVE TEAM}}\)
