Zadanie 1
2Zn+O2--->2ZnO
13 g 3,2g xg
13g+3,2 g=x
x=16,2 g
Zadanie 2
CaCO3--->CaO+CO2
100g xg 44 g
100g=x+44 g
x=56 g
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Zadanie 1
2Zn+O2--->2ZnO
13 g 3,2g xg
13g+3,2 g=x
x=16,2 g
Zadanie 2
CaCO3--->CaO+CO2
100g xg 44 g
100g=x+44 g
x=56 g