Write the net ionic equation. a)Sodium fluoride and dilute sulfuric acid solutio

Question

Write the net ionic equation. a)Sodium fluoride and dilute sulfuric acid solutions aremixed. b)Potassium dichromate solution is added to an acidifiedsolution of soidium sulfite. c)a solution of tin(II) ions is added to an acidified solutionof potassium permanganate d)Calcium carbonate is strongly heated. Write the net ionic equation. a)Sodium fluoride and dilute sulfuric acid solutions aremixed. b)Potassium dichromate solution is added to an acidifiedsolution of soidium sulfite. c)a solution of tin(II) ions is added to an acidified solutionof potassium permanganate d)Calcium carbonate is strongly heated.

Explanation / Answer

a) Molecular eq: 2 NaF (aq) +H2SO4 (aq) ----------> 2 HF (aq) +Na2SO4 (aq)         Net ioniceq:   2 F- (aq) + 2 H+ (aq) ----------> 2 HF (aq) b) K2Cr2O7 (aq) +Na2SO3 (aq) -------->Na2Cr2O7 (aq) +K2SO3 (aq)           Netionic : Here nonet ionic equation is formed, because all areremains as ions in the solution. c) The molecular equation for the given reactionis -             Sn+2 (aq) + MnO4-(aq) + 8 H+ (aq) - --> Sn+4 (aq)+ Mn+2(aq) + 4 H2O(l)    Net ioinc eq: Sn+2(aq) + MnO4- (aq) - -->Sn+4 (aq) + Mn+2 (aq) d) Net : CaCO3 ---------> CO2(g) + CaO (s) d) Net : CaCO3 ---------> CO2(g) + CaO (s)

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