1. 23 23
1 mol oxigen---------2. 6,023 .10 atomi----------2 . 8 .6,023 .10 electroni
MSO3=32+3.16=80-------> 1mol=80g MSO3=80 g/ mol
2KClO3=2KCl + 3O2
2H2O2=2H2O + O2
2.
MH2O=2+16=18------>1mol=18g
18 g H2O---------16 g O
36g---------------------xg
x=36.16: 18=32g oxigen
CH4+2 O2=CO2 +2H20
Propr. fizice.... ale cui ?