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a) CO2 = 12 u+2*16=44 u
b) Cl2O7 = 35.5u + 7*16 u=183 u
c) C6H12O6 = 6*12 u+12*1 u+6*16u=180u
zad 2
EO2=60
E + 16u*2=60u
E + 32 u= 60 u/-32u
E=28 u
E= Si (krzem)
zad 3
Mn2Ox=158u
55u*2+ 16x=158 u
110u+16x=158 u/-110u
16x=48 u/:16
x=3
Mn2O3