Question

AlCl3+Na2S->Al2S3+NaCl

AlCl3+Na2S+H2O->Al(OH)3+H2S+NaCl

Fe(NO3)3+Na2CO3+H2O->Fe(OH)3+CO2+NaNO3

CuFeS2 + O2 –> CuO + Fe2O3 + SO2

Answer 1

2AlCl3+3Na2S->Al2S3+6NaCl

2AlCl3+3Na2S+6H2O->2Al(OH)3+3H2S+6NaCl

2Fe(NO3)3+3Na2CO3+6H2O->2Fe(OH)3+3CO2+6NaNO3

4CuFeS2 + 13O2 –> 4CuO + 2Fe2O3 + 8SO2

Answer 2

\(2AlCl_3+3Na_2S\rightarrow Al_2S_3+6NaCl\)

\(2AlCl_3+3Na_2S+6H_2O\rightarrow2Al\left(OH\right)_3+3H_2S+6NaCl\)

\(2Fe\left(NO_3\right)_3+3Na_2CO_3+3H_2O\rightarrow2Fe\left(OH\right)_3+3CO_2+6NaNO_3\)

\(2CuFeS_2+\dfrac{13}{2}O_2\rightarrow2CuO+Fe_2O_3+4SO_2\)