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completatu spatile libere cu formele chimice ale reactantilor sau ale produsilor de reactie si stabileste cofecienti stometrici pentru ecuatile reactilor a).................H2+............O2---------》...........
b)...........................+................CO2-----------》H2CO3
c )..........................+..............S-----------------》
d ............................. +.................N2------------- 》........NH3
e .................MgO+........-------------》...........Mg(OH)2
F ............Al+..............O2------------》
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Răspuns:
a) 2H2+O2--->2H2O
b)H2O+CO2--->H2CO3
c)O2+S-->SO2
d)3H2+N2-->2NH3
e)MgO+H2O-->Mg(OH)2
f) 4Al+3O2--->2Al2O3