Classificar as reações de acordo com as substâncias participantes:
a) CaCO3 --- CaO + CO2
b) SO3 + H2O --- H2SO4
c) Fe + ZnSO4 --- FeSO4 + Zn
d) HNO3 + KOH --- KNO3 + H20
e) O2 + 2 F2 --- 2 OF2
f) HCl + NaOH --- NaCl + H2O
a) CaCO3 --- CaO + CO2
b) SO3 + H2O --- H2SO4
c) Fe + ZnSO4 --- FeSO4 + Zn
d) HNO3 + KOH --- KNO3 + H20
e) O2 + 2 F2 --- 2 OF2
f) HCl + NaOH --- NaCl + H2O
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