Question

срочно выручайте помогите решить​

Answer 1

1) Ca, P, Cl. O, Na, S.

2) Al

3) Na3PO4, NH4NO3, Al4C3, C6H5NO2

4) SeO2(Se - IV, O - II), NaO(Na - II, O-II), H2S(H - I, S - II), AsH(As - I, H - I) SiH(Si - I, H - I), HF( H - I, F - I)

5) PH3, NaO2. H2S, MgO, SO2, Al2O3

2Na + 2H2O = 2NaOH + H2

4P+5O2 = 2P2O5

N2 + 3H2 = 2NH3

2Ag2O = 4Ag + O2