Răspunsuri

2014-10-07T20:48:42+03:00
1 mol H2 = 2 g  contine 2*6.023* 10^{23} atomi
                10 g contine x atomi
x= 10*6.023* 10^{23} atomi
H2 + Cl2 --> 2HCl
1 mol H2 cantareste 2 g
y mol H2 cantareste 10 g
y= 5 mol H2
1 mol H2 formeaza 2 mol HCl
5 mol H2 formeaza z mol HCl
z= 10 mol HCl