Răspunsuri

2014-10-25T20:40:58+03:00
M(MgO)=2*(16+24)=80
m(O2)=16*2=32
m(O2)=(32*0,8)/80=0,32
m(H2O)=2*(16+2)=36
m(H2O)=(36*0,32)/32=0,36
Raspuns: m(H2O)=0,36 grame