Răspunsuri

2014-09-26T12:14:28+03:00
H2 + Cl2 ---> 2 HCl
2 g H (din reactie)................2 moli HCl
2 g H (ce se da in problema)..... x moli HCl         x = 2 moli HCl 
1 mol HCl.......6,022 * 10 la 23 molecule
2 moli HCl...............x molecule             x = 12,044 * 10 la 23 molecule
12 4 12