Respostas

  • flw
  • Principiante
2013-12-08T19:53:55-02:00
O (z=8) = 2 - 6
H(z=1) = 1
OH2  
formula : covalente
2013-12-08T20:53:32-02:00
O (z=8)= 2-6
H(z=1)= 1
OH2  

Covalente