Multiple ChoiceOn the pH scale, what is the typical average pH range for healthy human skin and hair?1views
Multiple ChoiceEarly hair-relaxer (lye) products were strongly basic. Which pH range best matches these early relaxer formulations?1views
Multiple ChoiceOn the pH scale, healthy human skin and hair are typically considered slightly acidic. Which pH range best matches this condition?1views
Multiple ChoiceOn the pH scale, pH is a measurement of the concentration of what species in aqueous solution?2views
Multiple ChoiceOven cleaners typically contain strong bases such as sodium hydroxide. What is the most likely pH of an oven cleaner solution?3views