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Balance and classify the following reactions: combination (C),decomposition (D), single replacement (SR), double replacement (DR) or combustion (CB)

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Balance and classify the following reactions: combination (C),decomposition (D), single replacement (SR), double replacement (DR) or combustion (CB).
a.  ____C3H8 (g) + ____O2 (g) → ____CO2 (g) + ____H2O (l)
b. ____K (s) + ____H2O (l) → ____KOH (aq) + ___H2 (g)
c. ____MgSO4 (aq) + ____Na2CO3 (aq) → ____MgCO3 (s) + ____Na2SO4 (aq)
d. ____Cl2 (g) + ____NaI (s) → ____NaCl (s) + ____I2 (s)
e. ____NaNO3 (s) → ____NaNO2 (s) + ____O2 (g)
f____H2 (g) + ____Cl2 (g) → ____HCl (g)
g. ____Ca(C2H3O2)2 (aq) + ____H3PO4 (aq) → ____Ca3(PO4)2 (s) + ____HC2H3O2 (aq)
h. ____H2O2 (l) → ____H2O (l) + ____O2 (g)
i. ____Na (s) + ____S (s) → ____Na2S (s)
j. ____BaCl2 (aq) + ____K2CrO4 (aq) → ____BaCrO4 (s) + ____KCl (aq)