This statment is false, the pen on a seismograph does not swing freely.
        
             
        
        
        
When the same species undergoes both oxidation and reduction in a single redox reaction, this is referred to as a disproportionation. Therefore, divide it into two equal reactions.
NO2→NO^−3 
NO2→NO 
and do the usual changes
First, balance the two half reactions:
3. NO2 +H2O →NO^−3 + 2 H^+ + e− 
4. NO2 +2 H^+ + 2e− → NO + H2O 
Now multiply one or both half-reactions to ensure that each has the same number of electrons. Here, Eqn (3) x 2 results in each half-reaction having two electrons:
5. 2 NO2 + 2 H2O → 2 NO^−3 + 4H^+ + 2e− 
Now add Eqn 4 and 5 (the electrons now cancel each other):
3NO2 + 2H^+ + 2H2O → NO + 2 NO−3 + H2O + 4H+
and cancel terms that’s common to both sides:
3NO2 + H2O → NO + 2NO^−3 + 2H+
This is the net ionic equation describing the oxidation of NO2 to NO3 in basic solution.
Learn more about balancing equation here: 
brainly.com/question/26227625
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<span>A. Mechanic agitations</span>
        
             
        
        
        
Answer:
You can mix both with rubbing alcohol, and rubbing alcohol is ionic. 
Explanation:
To mix them together:
Combine 1 cup rubbing alcohol, 1 cup water, and 1 tablespoon of white vinegar into a spray bottle. The solution can kill germs and clean counters, according to Reader's Digest.
Rubbing alcohol is both polar and iconic.
Hope that this helps you and have a great day :)
 
        
             
        
        
        
Answer:
6
Explanation:
im guessing because there is no diagram