13. Which of the following combination will result in \"no reaction\"? a) NaC03(

Question

13. Which of the following combination will result in "no reaction"? a) NaC03(aq) + Mg(NO3)2(aq) b) NaCl(aq) + ZnSO4(aq) c) Na2SO4(aq) + BaCl2(aq) d) HNO3(aq) + Ca(OH):aq) 14. Which of the following combination will result in "no reaction"? a) MgCl2(aq) + Pb(s) b) FeCl2(aq) + Zn(s) c) PbSO4(aq) + Al(s) d)HNO3(aq) + Sn(s) 15. Predict the products, and write the balanced molecular and net ionic reactions for the following. Ifno reaction occurs, write the molecular potential reaction, then label as "no reaction" a) Ph(NO3)2(aq) + KCl(aq) b) H2SO4(aq) + NaOH(aq) d) HCIO(aq) Ba(OH) 2(aq) + e) KCl(aq) + Mg(NO3)2(aq) g) Mg(s) HCl(aq) +

Explanation / Answer

15.

A)pb(no3)2 + 2kcl--->Pbcl2 + 2K(no3)

B) 2naoh + h2so4--->na2(so4) + 2h2o

C)fecl2 + sn--->fe2+ + sncl2

D)ba(oh)2 + 2hcl--->ba(clo)2 + 2h2o

E)no reaction , 2kno3 + mgcl2 --->2kcl + mg(no3)2

F)2cr + 3pb(no3)2 ---->3pb + 2cr(no3)3

G)mg + 2hcl---> mgcl2 + h2

14.A single displacement reaction generally is favoured when the metal which is displacing other metal from its salt solution has lower reduction potential..In case of Mg(cl)2 + pb---> .reduction potential of pb is much higher than that of mg...so no reaction..

13. (a) is not favourable because in NaCO3 , carbonate has -2 charge while Na has +1 charge ..so the existence of such molecule is not possible as it is not neutral.

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