Вещества: CuO, CO2, H2Co3, Ca, Br2​

1.A)2 Ca+C12- 2CaC13

5)3Mg + N2 + Mg3N2

B) K+O2- K20

r)2Fe+312- 2Fel3

A)Si+2012+ SiC14

2. Nb2(V) 05(11), Ti(IV)O2(11), Mn2(VII)O7(II),

S(VI)O3 (II), W(VI)O3(11), C(IV)H4(1)

3.Cr2(III) O3(11), Re2(VII)O7(11), Te( VI)O3(11),

Sn(IV)O2(II), In2( 1103 (II), Os( VIII)O4(11)

4.(II)

5. 2Na+S→ Na2S

2A1+3S- AI2S3

Ca+S+ Cas

6 Ag2(1)O; Fe2 (III)O3; S( VI)O3

7. 1)водород

8. 4) IV

9. 3) NO2 + NO + N20

10. 2) NH3 и КЗN;

11. 1) 2K+S+ K2S

2) Mg+S+ MgS