Sugar, spice, everything nice and Chemical X were the ingredients to which group of female characters?

The Powerpuff Girls is an American superhero animated television series created by animator Craig McCracken for Cartoon Network. The show centers on Blossom, Bubbles, and Buttercup, three girls with superpowers, as well as their father, the brainy scientist Professor Utonium, who all live in the city of Townsville. The girls are frequently called upon by the town's childlike and naive mayor to help fight nearby criminals using their powers.

As depicted in the opening sequence of each episode, the Powerpuff Girls Blossom, Bubbles and Buttercup were created by Professor Utonium in an attempt to create the "perfect little girl" using a mixture of "sugar, spice, and everything nice" (shown in respective fields of light blue, light green, and pink). However, he accidentally spilled a mysterious substance called "Chemical X" into the mixture, creating, instead of the "perfect little girl", three girls (each possessing one of the above elements dominating her personality), and granting all three superpowers including flight, super strength, super speed, near invulnerability, x-ray vision, super senses, heat vision, energy projection, invisibility, and control over lightning.