Zadanie 8
Mg+S--->MgS
0,75x x 28 g
0,75x+x=28 g
1,75x=28/:1,75
x=16 g siarki
28 g-16 g=12 g magnezu
Zadanie 9
100u 56u
CaCO3--T--->CaO+CO2
xg 112g
100u---56u
xg---112g
x=200 g
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Zadanie 8
Mg+S--->MgS
0,75x x 28 g
0,75x+x=28 g
1,75x=28/:1,75
x=16 g siarki
28 g-16 g=12 g magnezu
Zadanie 9
100u 56u
CaCO3--T--->CaO+CO2
xg 112g
100u---56u
xg---112g
x=200 g