help!!! help help!!!!!!!!!!!!химия

3CaCL2+2K3PO4-->Ca3(PO4)2↓+6KCL

3Ca⁺²+6Cl⁻+6K+2PO⁻²₄ -->Ca3(PO4)2+6K⁺+6CL⁻

3Ca⁺²+2PO⁻²₄ -->Ca3(PO4)2

3NaOH+H3PO4-->Na3PO4+3H2O

3Na⁺+3OH⁻+3H⁺+PO⁻²₄ -->3Na⁺+PO⁻²₄+3H2O

3OH⁻+3H⁺-->3H2O

Na2SO4+BaCL2-->2NaCL+BaSO4↓

2Na⁺+SO⁻²₄+Ba⁺²+2CL⁻-->2Na⁺+2CL⁻+BaSO4

SO⁻²₄+Ba⁺²-->BaSO4