Question

Citi moli de atomi de CL sunt necesari pentru a obtine 5 molFeCl3?
A)5
B)10
C)15
D)20
Imi trebu urgent

Answer 1

..y...........x...............5 moli
2Fe+3Cl2-->2FeCl3
..2...........3................2

$x = \frac{5 \times 3}{2} = 7,5 \: moli$
$y= \frac {5 \times 2}{2}=5\: moli$
Nu pune punctele.