Question

помогите срочно с химией

Answer 1

3NaOH + Fe(NO3)3 = Fe(OH)3 (oc) + 3NaNO3

3Na^+ + 3OH^- + Fe^3+ + 3NO3^- = Fe(OH)3 + 3Na^+ + 3NO3^-

Fe^3+ + 3OH^- = Fe(OH)3

2H3PO4 + 3CaCl2 = Ca3(PO4)2 + 6HCl

6H^+ + 2PO4^3- + 3Ca^2+ + 6Cl^- = Ca3(PO4)2 + 6H^+ + 6Cl^-

3Ca^2+ + 2PO4^3- = Ca3(PO4)2