Question

How to balance these ?
please tell me. ​

Answer 1

$\huge\bf\blue {Hey \:Mate!!!}$

$1) 2Na + Cl_2 --> 2NaCl\\2)4Al + 3O_2 --> 2Al_2O_3\\3)2CO + O_2 --> 2CO_2\\4)2K +2 H_2O --> 2KOH + H_2\\5)MgO + 2HCl --> MgCl_2 + H_2O$

@ItsMysteriousGirl✍