Question

What is a net ionic equation?
(A) An equation that includes only the substances that are actually participating in the reaction.
(B) An equation that includes all the substances that are in the reaction.
(C) An equation written so that all ions are shown.
(D) An equation written so all charges are balanced on each side.
(E) An equation that includes only ions.

Answer 1

A charged atom or molecule is known as an ion. It is charged since the number of electrons in the atom or molecule does not equal the number of protons. Based on if the number of electrons in an atom is greater or less than the number of protons in the atom, an atom may gain a positive or negative charge.

Complete answer:
The net ionic equation is a chemical equation that only indicates the atoms, molecules, and ions immediately involved in the chemical reaction. The positively-charged silver cation was written first on the reactant side of the net ionic equation, followed by the negatively-charged chloride anion. This is common practise that the ions must be written in the silver chloride product in this order. It is not, however, required to order the reactants in this manner.
Both mass and charge must be balanced in net ionic equations. The term "mass balancing" refers to ensuring that the masses of each material on the product and reactant sides are identical. Balancing by charge entails ensuring that the total charge on all sides of the equation is the same. In all sides of the equation of the above equation, the net charge is negative, or neutral. In addition, if the molecular equation is correctly calibrated, the net ionic equation would be balanced by both mass and charge.
A spectator ion is an ion that is present in solution both before and after a chemical reaction but does not participate in it.
Hence option A is correct, An equation that includes only the substances that are actually participating in the reaction.

Note:
On the reactant and product sides of a balanced chemical equation, there are equivalent numbers of atoms for each element involved in the reaction. This is a condition that the equation must meet in order to be consistent with the conservation of matter law. It can be checked by adding the numbers of atoms to both sides of the arrow and comparing them to ensure that they are identical.