Net Ionic Equations and Spectator Ions

This video tutorial explains how to write a balanced net ionic equation for the reaction between strontium nitrate and potassium sulfate. It covers balancing the molecular equation, determining the states of substances using solubility rules, and writing the complete ionic equation. The tutorial also identifies spectator ions and demonstrates how to derive the net ionic equation, ensuring both atom and charge balance.

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

• Write the complete ionic equation

• Determine the solubility of compounds

• Balance the molecular equation

• Identify spectator ions

Why is it important to know the solubility rules when writing net ionic equations?

• To determine the color of the compounds

• To identify the state of each compound

• To predict the reaction speed

• To calculate the molecular weight

Which compound forms a precipitate in the reaction between strontium nitrate and potassium sulfate?

• Potassium nitrate

• Strontium sulfate

• Strontium nitrate

• Potassium sulfate

What is the charge of the strontium ion in the complete ionic equation?

• 2-

• 1-

• 2+

• 1+

What are spectator ions in a chemical reaction?

• Ions that are only present in the products

• Ions that change their charge during the reaction

• Ions that do not change during the reaction

• Ions that participate in forming the precipitate

Which ions are considered spectator ions in the reaction between strontium nitrate and potassium sulfate?

• Strontium and nitrate ions

• Potassium and nitrate ions

• Strontium and sulfate ions

• Potassium and sulfate ions

What is the net charge of the balanced net ionic equation for the reaction?

• 2-

• 0

• 2+

• 1+

What is the final product in the net ionic equation for the reaction?

• Sr(NO3)2

• K2SO4

• SrSO4

• KNO3

Why do we not split solids in net ionic equations?

• They are not visible in the reaction

• They are always spectator ions

• They do not dissociate into ions

• They are not involved in the reaction

What ensures that the net ionic equation is balanced?

• Equal number of atoms on both sides

• Equal number of molecules on both sides

• Equal number of ions on both sides

• Equal number of compounds on both sides