In each of the following reaction write the ionic equation for the reactions. Qu

Question

In each of the following reaction write the ionic equation for the reactions.

Question 1:

If you place a piece of zinc foil in a test tube of lead (II) nitrate solution, it becomes covered in dark grey crystals of lead. Colorless zinc nitrate solution is also formed. (The nitrate ions are specter ions).

Question 2:

Aluminum powder reacts vigorously after some initial gentle heating with dilute hydrochloric acid to give hydrogen and a solution of aluminum chloride. (The chloride ions are specter ions).

Explanation / Answer

1.

Molecualr equation:

Zn (s) + Pb(NO3)2 (aq.) -----------> Zn(NO3)2 (aq.) + Pb (s)
Net ionic equation :
Zn (s) + Pb2+ (aq.) -----------> Zn2+ (aq.) + Pb (s)

2.

Molecular equation :

2 Al (s) + 6 HCl (aq.) ------------> 2 AlCl3 (aq.) + 3 H2 (g)

Net ionic equation :

2 Al (s) + 6 H+ (aq.) -----------> 2 Al3+ (aq.) + 3 H2 (g)

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