Question

Хелп срочно химия сяная)0)

Answer 1

Ответ:

Ar (Ni) = 58,7 , Ar(Fe) = 56 , Ar(Cu) = 64, Ar(Co) = 59, Ar(Ti) = 48,        Ar(Mn) = 55, Ar(Cr) = 52, Ar(V) = 51, Ar(W) = 184

1. w(Fe) = 72,5 %, w(O) = 27,5 %

2. w(Fe) = 70 %, w(O) = 30 %

3. w(Fe) = 77,77 %, w(O) = 22,23 %

4. w(Cu) = 80 %, w(O) = 20%

5. w(Cu) = 88,88 %, w(O) = 11,12 %

6. w(C) = 42,86%, w(O) = 57,14%

7. w(Si) = 46,67%, w(O) = 53,33%

8. w(Ni) = 71%, w(O) = 29%

9. w(Co) = 71%, w(O) = 29%

10. см п. 2

11. см п. 1

12. см п. 3

13. w(Ti) = 60%, w(O) = 40%

14. w(Mn) = 49,5%, w(O) = 50,5%

15. w(Mn) = 63,2%, w(O) = 36,8%

16. w(Cr) = 68,4%, w(O) = 31,6%

17. w(Cr) = 52%, w(O) = 48%

18. w(Al) = 53%, w(O) = 47%

19. w(V) = 56%, w(O) = 44%

20. w(W) = 88,5%, w(O) = 12,5%

21. см п. 1

22. см п. 2

23. см п. 14

24. см п. 15

25. см п. 16