Question

Giúp em mn 😻😻

Answer 1

Answer 2

\(4Na+O_2\rightarrow2Na_2O\\ Fe+2HCl\rightarrow FeCl_2+H_2\\ 2Al+3Cl_2\underrightarrow{^{to}}2AlCl_3\\ Na_2O+H_2O\rightarrow2NaOH\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\\ 2Al+3S\underrightarrow{^{to}}Al_2S_3\\ 2Cu+O_2\underrightarrow{^{to}}2CuO\\ 2Fe+3Cl_2\underrightarrow{^{to}}2FeCl_3\\ 2KOH+CO_2\rightarrow K_2CO_3+H_2O\\ AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\)