Multiple ChoiceOn the pH scale for aqueous solutions, what is the smallest possible pH value (theoretical, not limited by practical measurement)?2views
Multiple ChoiceHair, skin, and nails are generally considered to be slightly acidic. Which pH range best describes their typical surface pH?2views
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?2views