Write a net ionic equation for the reaction between aqueous...

Write a net ionic equation for the reaction between aqueous solutions of (a) sodium acetate $\left(\mathrm{NaC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)$ and nitric acid. (b) hydrobromic acid and strontium hydroxide. (c) hypochlorous acid and sodium cyanide. (d) sodium hydroxide and nitrous acid.

Write a net ionic equation for the reaction between aqueous solutions of
(a) sodium acetate $\left(\mathrm{NaC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)$ and nitric acid.
(b) hydrobromic acid and strontium hydroxide.
(c) hypochlorous acid and sodium cyanide.
(d) sodium hydroxide and nitrous acid.

Key Concepts

Net Ionic Equations

A net ionic equation is a simplified version of a chemical equation that shows only the species that actively participate in the reaction. It is derived by removing the spectator ions, which are ions that remain unchanged during the reaction, from the full ionic equation. This method helps in clearly illustrating the fundamental steps of the reaction process.

Acid-Base Reactions

Acid-base reactions involve the transfer of protons (H+ ions) between reactants. In these reactions, an acid donates a proton, while a base accepts a proton. The net ionic equations for acid-base reactions typically emphasize the proton-transfer process, often culminating in the formation of water when a proton and a hydroxide ion combine.

Strong vs Weak Electrolytes

Understanding the difference between strong and weak electrolytes is crucial when writing net ionic equations. Strong acids and bases dissociate completely in aqueous solutions, meaning that they exist entirely as ions. Conversely, weak acids and bases only partially dissociate, and their undissociated forms are usually represented in the net ionic equations. This distinction affects which species are included in the net ionic representation of the reaction.

Spectator Ions

Spectator ions are the ions present in the reaction mixture that do not participate in the chemical change. They appear unchanged on both sides of the full ionic equation and are omitted in the net ionic equation. Identifying and removing these ions simplifies the equation to display only the species that undergo a chemical transformation.

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