Spectator Ions and Net Ionic Equations

This video tutorial explains how to write the net ionic equation for the reaction between sodium iodide (NaI) and silver nitrate (AgNO3). It begins with balancing the molecular equation, then determining the states of the substances using solubility rules. The tutorial proceeds to split the soluble compounds into their ions to form the complete ionic equation. Spectator ions are identified and removed to derive the net ionic equation. The video concludes with a summary of the process.

What is the first step in writing a net ionic equation?

• Writing the complete ionic equation

• Determining the charges of ions

• Identifying spectator ions

• Balancing the molecular equation

Which of the following is typically soluble in water?

• Silver iodide

• Sodium iodide

• Lead sulfate

• Calcium carbonate

What state symbol is used for substances that are dissolved in water?

• (l)

• (s)

• (aq)

• (g)

How do you determine the charge of sodium in the periodic table?

• It is a transition metal

• It is in group 1 with a 1+ charge

• It is in group 17 with a 1- charge

• It is a noble gas

What is the charge of the nitrate ion?

• 2-

• 1-

• 2+

• 1+

What is the purpose of identifying spectator ions?

• To balance the equation

• To determine the states of substances

• To simplify the equation by removing unchanged ions

• To identify the charges of ions

Which ions are considered spectator ions in the reaction between NaI and AgNO3?

• Silver and iodide ions

• Sodium and nitrate ions

• Iodide and nitrate ions

• Sodium and silver ions

What is the final product formed in the reaction between NaI and AgNO3?

• Silver nitrate

• Sodium iodide

• Silver iodide

• Sodium nitrate

In the net ionic equation, which ion is typically written first?

• Nitrate ion

• Sodium ion

• Silver ion

• Iodide ion

What is the net ionic equation for the reaction between NaI and AgNO3?

• Na+ + NO3- → NaNO3

• Ag+ + I- → AgI

• Na+ + I- → NaI

• Ag+ + NO3- → AgNO3