L. Write the molecular, ionic, and net ionic equations for the reaction of aqueo

Question

L. Write the molecular, ionic, and net ionic equations for the reaction of aqueous bydrobromic acid and aqucous harium hydroxide Write the molecular, ionic, and net ionic equations for the reaction of aqueous hydrobromic acid and agueous ammonia Write the molecular, ionic, and net ionic equstions for the reaction of and aqueous hydrofluoric acid. aqueous ammonia Oxygen has a positive oxidation number in the Inthe reaction Cl2+2Br 2cr + Bn which half-reaction correctly a.2Br Br2 + 2e b.Clz 2CT + 2e. c.2Br + 2e Br2 hthe reaction: 2K +Cl2 2KCL the species oxidized is 12. Determine what s oxidizred, what is reduced, the and the reducing agent oxidizing agent, For each of the following pairs of elemo one that would replace the other element in a compound. a.lithium, gold b. iron, copper c. silver, cobalt d. zinc, sodium

Explanation / Answer

1)

Molecular equation

2HBr(aq) + Ba(OH)2(aq) - - - - - > BaBr2(aq) + 2H2O(l)

Ionic equation

2H3O+(aq) + 2Br-(aq) + Ba2+(aq) + 2OH-(aq) - - - - - > Ba2+(aq) + 2Br-(aq) + 4H2O(l)

net ionic equation

   2H3O+(aq) + 2OH-(aq) - - - - - - > 4H2O(l)

2)

Molecular equation

HBr(aq) + NH3(aq) - - - - - > NH4Br(aq)

Ionic equation

H3O+(aq) + Br-(aq) + NH3(aq) - - - - - > NH4+(aq) + Br-(aq) + H2O(l)

Net ionic equation

H3O+(aq) + NH3(aq) - - - - - > NH4+(aq) + H2O(l)

3)

Molecular equation

NH3(aq) + HF(aq) - - - - - - > NH4F(aq)

Ionic equation

NH3(aq) + H3O+(aq) + F-(aq) - - - - > NH4+(aq) + F-(aq) + H2O(l)

Net ionic equation

NH3(aq) + H3O+(aq) - - - - - - > NH4+(aq) + H2O(l)

4)

c. OF2

5)

a) 2Br- --------> Br2   + 2e-

6)

K

7)

I- oxidised

Au3+ reduced

Au3+ oxidising agent

I-   reducing agent

8)

lithium

Iron

cobalt

sodium

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