How to Balance the Net Ionic Equation for AgNO3 + K2CrO4

Both AgNO3 and K2CrO4 are considered strong electrolytes and will dissociate completely. This means that we will split them apart in the net ionic equation.

AgNO3 + K2CrO4 is a double displacement reaction. The Ag in AgNO3 and the K in K2CrO4 switch places in the reaction.

Video: AgNO3 + K2CrO4 (Net Ionic Equation)

To balance net ionic equations we follow these general rules:

  1. Write the balanced molecular equation.
  2. Write the state (s, l, g, aq) for each substance.
  3. Split strong electrolytes into ions (the complete ionic equation).
  4. Cross out the spectator ions on both sides of complete ionic equation.
  5. Write the remaining substances as the net ionic equation.

Note: charges in a net ionic equation are conserved. This means that the overall charge (called the net charge) on the reactants side (left) of the equation must equal to the net charge on the products side (right).

Video: How to Balance Net Ionic Equations

More Worked examples of Net Ionic Equations