Net Ionic Equations and Charges

The video tutorial explains how to write a balanced net ionic equation for the reaction between copper(II) chloride and sodium phosphate. It begins with balancing the molecular equation, followed by determining the states of substances using solubility rules. The tutorial then demonstrates how to split strong electrolytes into ions to form the complete ionic equation. Finally, it shows how to identify and remove spectator ions to derive the net ionic equation, while also addressing common errors and ensuring charge conservation.

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

• Identify spectator ions

• Write the states of each substance

• Balance the molecular equation

• Determine the solubility of compounds

How many copper atoms are needed to balance the molecular equation for copper(II) chloride and sodium phosphate?

• Four

• Three

• Two

• One

Which of the following is generally insoluble?

• Sodium chloride

• Sodium phosphate

• Copper(II) phosphate

• Potassium phosphate

What is the charge of the phosphate ion?

• 1-

• 2-

• 4-

• 3-

What do you do with spectator ions in a net ionic equation?

• Change their charges

• Double their coefficients

• Include them in the final equation

• Cross them out

What is the net charge of a balanced net ionic equation?

• Positive

• Depends on the reaction

• Negative

• Zero

What happens if you don't balance the atoms correctly in a net ionic equation?

• The equation will still be correct

• The charge will be incorrect

• The equation will be more complex

• The reaction will not occur

Which ions are not split in a net ionic equation?

• Liquid ions

• Gaseous ions

• Solid precipitates

• Aqueous ions

What is the charge on copper in copper(II) chloride?

• 1+

• 4+

• 2+

• 3+

Why is it important to check for errors in the net ionic equation?

• To confirm the reaction is visible

• To maintain charge and atom balance

• To ensure the reaction is fast

• To make the equation longer