Write balanced equations for the following reactions in basicsolutions. a) Zn(s)

Question

Write balanced equations for the following reactions in basicsolutions.

           

a)      Zn(s) +NO3- (aq) à NH3 (aq) +Zn2+ (aq)

b)      ClO- (aq) +CrO2- (aq) à Cl- (aq) +CrO42- (aq)

Explanation / Answer

Sorry, not read it carefully><              4Zn + 9H+ + NO3---> NH3 + 3H2O + 4Zn2+ in basic:                9H2O -> 9H+ +9OH-    final:       --> 4Zn + NO3- +6H2O --> NH3 + 4Zn2+ +9OH-               b)           3ClO- + 2CrO2- + H2O-> 2CrO42-+ 3Cl-+2H+                     2H+ + 2OH- --> 2H2O            final: 3ClO- + 2CrO2- +2OH- -> 2CrO42-+3Cl-+ H2O

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