Răspuns:
Explicație:
SO2
a. M = 32 + 2.16= 64-------> 64g/moli
b. n= m : M
m= n .M
m= 7moli . 64g/moli=448 g SO2
c. n= m : M
n= 30g : 64g/moli=0,46875 moli SO2
d.
r.a.= 1 : 2
e.
r.m.= 32 : 32
= 1 : 1
f.
64 g SO2-----------32gO
600g-------------------x
x= 600.32 : 64=300 g oxigen
g.
64g SO2-------32g S
yg--------------------4gS
y= 64 .4 : 32=8 g S
