What is an ionic equation?
Similar to a molecular equation, which expresses compounds as molecules, an ionic equation is a chemical equation in which the electrolytes in aqueous solution are expressed as dissociated ions. The ions in aqueous solutions are stabilized by ion-dipole interactions with water molecules.
Can there be no net ionic equation?
A net ionic equation must be balanced on both sides not only in terms of atoms of elements, but also in terms of electric charge. If all products are aqueous, a net ionic equation cannot be written because all ions are canceled out as spectator ions. Therefore, no precipitation reaction occurs.
What is the difference between a molecular equation and a net ionic equation?
Molecular equations show species reacting as their molecular formula, with subscripts added to indicate their solid, liquid, gaseous, or aqueous nature. Ionic equations show species reacting as their ionic components. A net ionic equation is one in which spectator ions are removed.
What does a net ionic equation look like?
The net ionic equation is the chemical equation that shows only those elements, compounds, and ions that are directly involved in the chemical reaction. In the above equation, the overall charge is zero, or neutral, on both sides of the equation.
What is an ionic equation give an example?
(i) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride. (ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.
Why ionic reactions are fast?
It is not consumed or changed throughout the reaction. In general ionic bonds are formed faster than covalent bonds because in covalent compounds there has to be a bond breakage that will slow down the entire reaction, whereas in ionic bond it is more or less a substitution of ions.
Are ionic and half equations the same?
These are known as half-equations. The two half-equations combined give the overall equation. Ionic half-equation simply refers to the fact that we simplify the half-equation by only showing the ions that undergo change.
Which ions do not appear in a net ionic equation?
In a complete ionic equation all substances that are strong electrolytes are represented as ions. From the complete ionic equation we see that Na+ and Cl– ions don’t really participate in the reaction. They are examples of what we call spectator ions: Ions that appear on both sides of the equation.
Do net ionic equations have coefficients?
Write and balance the molecular equation first, making sure that all formulas are correct. Then write the ionic equation, showing all aqueous substances as ions. Carry through any coefficients. For a precipitation reaction, the net ionic equation always shows the two ions that come together to form the precipitate.
What is the advantage of writing net ionic equations?
The advantage of net ionic equations is that they show only those species that are directly involved in the reaction.
Can a complete ionic equation and net ionic equation be the same?
Now, the only difference between the complete ionic equation and the net ionic equation lies in the fact that the latter does not show spectator ions. In your case, the complete ionic equation and the net ionic equation will be one and the same, since no ions can be found on the reactants’ and on the products’ side.