chemistry The following unbalanced molecular equation describes the reaction tha
ID: 893509 • Letter: C
Question
chemistry The following unbalanced molecular equation describes the reaction that takes place when a solution of calcium nitrate is contacted with a solution of sodium carbonate: Ca(NO_3)_2(aq) + Na_2CO_3(aq) rightarrow CaCO_3(s) + NaNO_3(aq) The corresponding balanced net ionic equation is: The following unbalanced molecular equation describes the reaction that takes place when a solution of barium chloride is contacted with a solution of potassium phosphate: BaCl_2(aq) + K3PO_4(aq) rightarrow Ba_3(PO_4)_2(s) + KCl(aq) The corresponding balanced net ionic equation is: The following unbalanced molecular equation describes the reaction that takes place when a solution of barium hydroxide is contacted with a solution of nitric acid: Ba(OH)_2(aq) + HNO_3(aq) rightarrow Ba(NO_3)_2(aq) + H_2O(l) The corresponding ionic equation is:Explanation / Answer
Q.1)
Balanced equation
Ca(NO3)2 (aq) + Na2CO3 (aq) -- > CaCO3 (s) + 2NaNO3 (aq)
Total net ionic equation :
Species in the aqueous medium are split.
Ca2+ (aq) + 2 NO3- (aq) + 2 Na2+ (aq) + CO32- (aq) -- > CaCO3 (s) + 2 NO3- (aq) + 2 Na2+ (aq)
Net ionic equation :
Spectator ions are cancelled from both side
Ca2+ (aq) + CO32- (aq) -- > CaCO3 (s)
Q2)
3 BaCl2 (aq) +2 K3PO4 (aq) ----- > Ba3(PO4)2 (s) +6 KCl (aq)
Total ionic equation
3 Ba2+ ( aq) + 6 Cl- + 6 K + (aq) + 2 PO3 3- (aq) --- > Ba3(PO4)2 (s) + 6Cl- + 6 K + (aq)
Net ionic equation
3 Ba2+ ( aq) + 2 PO3 3- (aq) --- > Ba3(PO4)2 (s)
Q3.
Ba(OH)2 (aq) +2 HNO3 (aq) --- > Ba(NO3)2 (aq) + 2H2O (l)
Total ionic
Ba2+ (aq) +2 OH –(aq)+ 2 H+ (aq) + 2 NO3- (aq) --- > Ba2+ (aq) + 2 OH – (aq) + 2H2O (l)
Net ionic equation
2 OH- (aq) + 2 H+ (aq) -- > 2 H2O (l)
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