What is a pure ion equation?

The pure ion equation is a form of a chemical equation in which the substances are represented by their ion formulas, and only substances that are directly involved in the chemical reaction are included. This type of equation is usually used to display reactions of chemical compounds that exist in aqueous or liquid solution called electrolyte. Electrolytes are substances consisting of loose floating ions, positive or negatively charged atoms that allow the solution to perform electricity. Some of the ions in the electrolyte may respond to each other to form a product, while other ions remain in the solution and do not participate in the reaction. The pure ion equation cuts out non -patting ions and shows only the ions that turn into another product during the reaction.

In the general chemical equation, substances are represented by their full chemical substance - for example, reaction of aqueous (AQ) solutions of sodium hydroxide (NaOH)Orovine (HC1) would prove to be NaOH (AQ) + HC1 (AQ), followed by an arrow and product formula, suggesting what the reaction would provide. In fact, however, both sodium hydroxide and hydrochloric acid are strong electrolytes, which means that they are completely disocreated to their ingredients when they are in solution. Sodium hydroxide does not exist as a NaOH molecule in solution, it exists as a positive sodium (Na+) and negatively charged ion of hydroxide (OH-), both freely floating in the mixture. The ion equation would therefore show strong electrolytes such as individual ions with positive or negative charges. Neelecrolyt substances that do not divide into ions would remain written in molecular form.

The pure ion equation is a step further. Instead of simply representing all independent ions and their products in EQUEATION, he omits ions that do not change during the reaction. These ions, which are not participants, are called audience ions. By simplifying the reaction in this way pure ioThe nt equation only shows the real response that takes place.

For example, in the reaction of sodium hydroxide and hydrochloric acid above, a clean product (L), water (H _{2 o) is created. The water molecule consists of two hydrogen atoms associated with one oxygen atom. In the water product comes a single oxygen atom and one of the hydrogen hydrogen atoms (OH-) of the sodium hydroxide, while the other hydrogen atom is the hydrogen ion (H+) of hydrogen acid. Because OH-and H+ ions change and bind to the creation of liquid water, they are included in a clean ion equation.}

Sodium ion (Na+) of sodium hydroxide (NaOH) and chlorine ion (CL-) of hydrochloric acid (HCI), however, do not interact to form a final product. At the end of the reaction, there are still free floating ions. Sodium and chlorine are therefore viewers' ions of this reaction and are not included in the clean ion equation. Pure ion equation in the reaction described above would read OH- (AQ) + H + (AQ)-> H _{2 O (L).}