Net Ionic Equations: Solutions & Examples

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SUMMARY

The discussion focuses on writing net ionic equations for two specific chemical reactions involving nitric acid (HNO2 and HNO3) and sodium carbonate (Na2CO3) as well as zinc metal. The first reaction involves the addition of 6 M HNO2 to 1 M Na2CO3, where Na2CO3 displays 2 equivalents per mole. The second reaction is a redox process where nitric acid reacts with zinc, producing zinc ions and nitrogen monoxide. Key insights include recognizing the weak acid behavior of HNO2 and the decomposition of carbonic acid.

PREREQUISITES
  • Understanding of net ionic equations
  • Knowledge of acid-base reactions and redox reactions
  • Familiarity with weak acids and their dissociation
  • Basic concepts of stoichiometry in chemical reactions
NEXT STEPS
  • Study the principles of writing net ionic equations
  • Learn about the dissociation of weak acids, specifically HNO2 and HNO3
  • Explore redox reaction mechanisms and their balancing techniques
  • Investigate the properties and reactions of carbonic acid (H2CO3)
USEFUL FOR

Chemistry students, educators, and anyone involved in chemical education or laboratory work focusing on acid-base and redox reactions.

ATranPV
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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.
 
Physics news on Phys.org
Carbonic acid immediately decomposes.

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

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