Net Ionic Equations: Solutions & Examples

[ATranPV]

Homework Statement

Write the net ionic equation for the following reactions:

1). Excess 6 M HNO2 is added to 1 M Na2CO3. Na2CO3 displays 2eq/mol

2). Nitric Acid is added to Zinc metal. The products are nitrogen monoxide and zinc ion.

Homework Equations

NA

The Attempt at a Solution

1). 2HNO2 + Na2CO3 --> 2NaNo2 + H2CO3

When I tried writing the total ionic equation, I noticed that both acids were weak acids. Does this reaction occur?

2). HNO3 + 3Zn --> 3Zn(NO3)2 + 4H2O + 2NO

This is as far as I got...

Any help is much appreciated. Thank you in advance.

 

[Borek]

Carbonic acid immediately decomposes.

Some of these substances are completely dissociated, start writing them as ions.

 

[ATranPV]

I've figured them out. I was trying to do double displacement for the acid base reacton and realized that the second one is a REDOX reaction. Thanks!