Question

problema in poza. Va rog​

Answer 1

Răspuns:

Explicație:

n= m : M

n= 64g : 32g/moli= 2moli S

1mol S------6,022.10²³atomi S

2moli S----------x

x= 2 . 6,022.10²³= 12,044. 10 ²³atomi S

12, 044 .10²³atomi Mg-------------------2moli Mg

12,044.10²³ atomi N--------------------2moli atomi N --------28g N

12,044.10²³ atomi Na------------------2moli de atomi Na

12,044.10²³atomi Cu----------------2moli Cu--------128gCu

12,044.10²³ atomi Zn---------------2moli Zn------------130g Zn