Question

For the following reactions please balance the equation and convert to a net ionic equation (see above) and give the correct physical state of each reactant and product in the net ionic equation ( s, l, g or aq), (net ionic equations may be reported in data and calculation section and need not be repeated here). (a) BaCl2 + Na3PO4 ---> Ba3(PO4)2 + NaCl (b) BaCl2 + Na2SO4 ---> BaSO4 + NaCl (c) BaCl2 + Na2CO3 ---> BaCO3 + NaCl (d) BaCl2 + Na2SO3 ---> BaSO3 + NaCl (e) BaSO3 + HNO3 ---> SO2 + H2O + Ba(NO3)2 (f) BaCO3 + HNO3 ---> CO2 + H2O + Ba(NO3)2 (g) Ba3(PO4)2 + HNO3 ---> H3PO4 + Ba(NO3)2 (h) AgNO3 + NaI ---> AgI + NaNO3 (i) AgNO3 + NaBr ---> AgBr + NaNO3 (j) AgNO3 + NaCl ---> AgCl + NaNO3 (k) NaI + Cl2 ---> I2 + NaCl (l) NaBr + Cl2 ---> Br2 + NaCl (m) 2NaNO3 + 2H2SO4 + 2FeSO4 ---> 2NO2 + Fe2(SO4)3 + 2H2O + Na2SO4 (n) 3NaNO2 + H2SO4 ---> 2NO + H2O + NaNO3 + Na2SO4 (o) 2NaNO2 + 2H2SO4 + 2FeSO4 ---> 2NO + Fe2(SO4)3 + 2H2O + Na2SO4 (p) H2SO4 + Na2CO3 ---> CO2 + Na2SO4 + H2O (q) H2SO4 + Na2SO3 ---> SO2 + Na2SO4 + H2O

Answer 1

(a) Balanced molecular equation is 3BaCl₂ (aq)+ 2Na₃PO₄(aq) ---> Ba₃(PO₄)₂ (s)+ 6NaCl (aq)

Total ionic equation is : 3Ba²⁺(aq) +6Cl^-(aq) + 6Na⁺(aq) + 2PO₄^3-(aq) ---> Ba₃(PO₄)₃(s) + 6Na⁺(aq) + 6Cl^-(aq)

Spectator ions are : Na⁺(aq) & Cl^-(aq)

Net ionic equation was obtained by cancelling the spectator ions on both sides as

3Ba²⁺(aq) + 2PO₄^3-(aq) ---> Ba₃(PO₄)₃(s)

(b) Balanced molecular equation is BaCl₂ (aq)+ Na₂SO₄(aq) ---> BaSO₄(s) + 2NaCl (aq)

Total ionic equation is : Ba²⁺(aq) +2Cl^-(aq) + 2Na⁺(aq) + SO₄^2-(aq) ---> BaSO₄(s) + 2Na⁺(aq) +2Cl^-(aq)

Spectator ions are : Na⁺(aq) & Cl^-(aq)

Net ionic equation was obtained by cancelling the spectator ions on both sides as

Ba²⁺(aq) + SO₄^2-(aq) ---> BaSO₄(s)

(c)Balanced molecular equation is BaCl₂(aq) + Na₂CO₃ (aq) ---> BaCO₃(s) + 2NaCl (aq)

Total ionic equation is : Ba²⁺(aq) +2Cl^-(aq) + 2Na⁺(aq) +CO₃^2-(aq) ---> BaCO₃(s) +2Na⁺(aq) +2Cl^-(aq)

Spectator ions are : Na⁺(aq) & Cl^-(aq)

Net ionic equation was obtained by cancelling the spectator ions on both sides as

Ba²⁺(aq)+CO₃^2-(aq) ---> BaCO₃(s)

(d) Balanced molecular equation is BaCl₂(aq) + Na2SO₃(aq) ---> BaSO₃(s) + 2NaCl(aq)

Total ionic equation is : Ba²⁺(aq) +2Cl^-(aq) + 2Na⁺(aq) +SO₃^2-(aq) ---> BaSO₃(s) +2Na⁺(aq) +2Cl^-(aq)

Spectator ions are : Na⁺(aq) & Cl^-(aq)

Net ionic equation was obtained by cancelling the spectator ions on both sides as

Ba²⁺(aq)+SO₃^2-(aq) ---> BaSO₃(s)