Dissociation (chemistry)

Dissociation in chemistry is like when you have a candy bar that has two different flavors stuck together, but when you break it apart, you suddenly have two separate candies. In chemistry, some substances (like salt) are made up of two different things (like sodium and chlorine) that are stuck together because they really like each other. When you add this substance to water, they can break apart and become separate individuals. This is called dissociation. Just like how you can break apart your candy bar and now have two candies that taste different, in chemistry, you now have two different substances that behave differently than they did when they were stuck together.