\(\left(1\right)2Cu+O_2\xrightarrow[]{t^0}2CuO\\ \left(2\right)CuO+H_2\xrightarrow[]{t^0}Cu+H_2O\\ \left(3\right)CaO+H_2O\rightarrow Ca\left(OH\right)_2\\ \left(4\right)Cu\left(OH\right)_2\xrightarrow[]{t^0}CuO+H_2O\\ \left(5\right)Fe+2HCl\rightarrow FeCl_2+H_2\\ \left(6\right) Fe+CuSO_4\rightarrow Cu+FeSO_4\)
\(\left(7\right)FeO+2HCl\rightarrow FeCl_2+H_2O\\ \left(8\right)CaCO_3\xrightarrow[t^0]{}CaO+CO_2\\ \left(9\right)FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2+2NaCl\\ \left(10\right)2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\\ \left(11\right)S+Fe\xrightarrow[t^0]{}FeS\\ \left(12\right)2NaOH+2H_2O\xrightarrow[đpcmn]{}2NaOH+Cl_2+H_2\\ \left(13\right)SO_2+CaO\rightarrow CaSO_3\\ \left(14\right)MgSO_3\xrightarrow[t^0]{}MgO+SO_2\\ \left(15\right)BaCl_2+H_2SO_4\rightarrow BaSO_4+2HCl\\ \left(16\right)HCl+NaOH\rightarrow NaCl+H_2O\\ \left(17\right)S+O_2\xrightarrow[]{t^0}SO_2\\ \left(19\right)SO_3+H_2O\rightarrow H_2SO_4\)
p/s: bạn bỏ số 18 đi nha, tại mik bấm nhầm sorry bạn!
