Which substance will most likely ionize when it is dissolved in water? HBr CaBr_(2) MgCl_(2) KCI

## Step 1: Understanding Ionization in Water### Ionization is the process by which a molecule or ion forms positive and negative ions in water. We are evaluating which substance among , , , and ionizes effectively in water.## Step 2: Evaluating Acidic and Ionic Nature### Strong acids and ionic salts typically ionize completely in water. is a strong acid, while , , and are ionic salts. ## Step 3: Degree of Ionization by Strong Acids### Among the substances listed, is a strong acid and ionizes completely in water. This includes dissociating into and ions.#