Respostas

2013-12-17T20:15:16-02:00
Na = 23g 
Cl = 35,5g 
MM= 23+ 35,5 = 58,5g
6 4 6
2013-12-17T20:17:40-02:00
Massas:
Na- 23
Cl- 35,5

NaCl- 23+35,5= 58,5 gramas