Question

помогите срочно #56,#57

Answer 1

56. Ответ В.
57.2HCl+Na2SO3=2NaCl+SO2+H2O
2H^+ + 2C^l- + 2Na^+ + SO3^2-=2Na^+ + 3Cl^- + SO2 + H2O
Fe^3+ + OH^ - = Fe(OH)3
Fe(NO3)3 + 3NaOH=Fe(OH)3+ 3NaNO3
Fe^3+ + 3NO3^- + 3Na^+ + 3OH^-= Fe(OH)3+ 3Na^+ + 3NO3^-