Question

Помогите пожалуйста!)

Answer 1

P2(V)O5(II), Si(IV)O2(II), Ca(II)O(II), AL2(III)O3(II), Na2(I)O(II),
PCl5, SiCl4, CaCl2, AlCl3, NaCl

3H2+N2=2NH3
2Al+3Cl2=2AlCl3
2HBr=H2+Br2
2Au2O3=4Au+3O2