Balancear as seguintes equações químicas:
a) CaO+ P2O5 → Ca3(PO4)2
b) Al(OH)3 + H2SO4 → Al2(SO4)3 + H2O
c) CuSO4 +  NaOH →Cu(OH)2 +Na2SO4
d)  Fe2(SO4)3 +NaOH →  Fe(OH)3 + Na2SO4
e)  NaNO3 + H2SO4  → Na2SO4 +  HNO3
f) C10H16+ Cl2→ C + HCl
g) Hg(OH)2 + H3PO4 → Hg3(PO4)2 + H2O
h)  Fe + O2 → Fe2O3
i)  Ca3P2 + H2O → Ca(OH)2 + PH3
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