Net ionic equation khan academy

What is a net ionic equation?

DEFINITIONS: spectator ion: an ion that is present in a solution in which a reaction takes place, but is not changed during the reaction process. net ionic equation: a chemical equation in which only those ions undergoing chemical changes during the course of the reaction are represented.

What is the difference between a total ionic equation and a net ionic equation?

Summary. A net ionic equation shows only the chemical species that are involved in a reaction, while a complete ionic equation also includes the spectator ions.

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 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.

What is the benefit 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.

Are liquids included in net ionic equations?

Writing Net Ionic Equations First of all, we MUST start with an equation that includes the physical state: (s) for solid, (l) for liquid, (g) for gas, and.

What is the net ionic equation of the reaction of zncl2 with NaOH?

Zn(CL)2 and NaOH reaction creates NaCl and Zn(OH)2. All compounds in reaction are soluble except Zn(OH)2. For the net ionic equation, we would have Zn + OH—>ZnO(H2); balanced on both sides.

What is the meaning of ion?

an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons, as a cation (positive ion ), which is created by electron loss and is attracted to the cathode in electrolysis, or as an anion (negative ion ), which is created by an electron gain and is attracted to the anode.

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.

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Complete ionic equation example

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