How to find the net ionic reaction with only reactants/reagents?

In summary, to determine spectator ions in a net ionic reaction, write out the complete ionic equation and cancel out ions that appear on both sides. This can also be done for reactions with multiple reactants. The purpose is to simplify and better understand the reaction. Cancel out ions that appear on both sides of the equation and the net ionic reaction can change based on reaction conditions.
  • #1
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For example, if I am given something like HCl and NaOH, or ##HNO_3## and ##Ba(OH)_2##. Can someone explain how I would find the net ionic reaction or provide a link to a good tutorial on how to write the equation for the total/net reaction with only the reagents/reactants?
 
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  • #2
As you were told elsewhere, the first step is to write reaction equation with molecules. Then replace molecules with ions (dissociation), then cancel ions that don't change (spectators).
 

1. How do you determine which species are spectator ions in a net ionic reaction?

In order to determine which ions are spectator ions, you need to first write out the complete ionic equation for the reaction. Then, compare the ions on both the reactant and product side. Any ions that are present on both sides of the equation are spectator ions, and can be cancelled out to find the net ionic equation.

2. Can you find the net ionic reaction for a reaction with multiple reactants?

Yes, you can find the net ionic reaction for a reaction with multiple reactants. First, write out the complete ionic equation for the reaction. Then, compare the ions on both the reactant and product side and cancel out any spectator ions. Finally, combine the remaining ions to find the net ionic reaction.

3. What is the purpose of finding the net ionic reaction?

The net ionic reaction allows us to see only the essential chemical changes that occur during a reaction, without the presence of spectator ions. This helps to simplify and better understand the reaction and its products.

4. How do you know which ions to cancel out when finding the net ionic reaction?

When finding the net ionic reaction, you should only cancel out ions that appear on both the reactant and product side of the complete ionic equation. These ions are known as spectator ions and do not participate in the chemical reaction.

5. Can the net ionic reaction change depending on the conditions of the reaction?

Yes, the net ionic reaction can change depending on the conditions of the reaction. For example, if the reaction is carried out in a different solvent or at a different temperature, the ions present in the solution may change and therefore the net ionic reaction may also change.

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