Redseal Hairstyling License Practice Test

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Prepare for the Redseal Hairstyling License Exam with our quiz. Utilize flashcards and multiple choice questions with detailed hints and explanations. Elevate your hairstyling knowledge and get exam-ready effectively!

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What pH level indicates an acidic substance?

pH of 7 or higher
pH below 7
pH exactly 7
pH between 6 and 7

The correct answer is: pH below 7

A substance is considered acidic when its pH level is below 7. The pH scale ranges from 0 to 14, where a pH of 7 is neutral, indicating neither acidic nor basic characteristics. Any pH measurement lower than 7 denotes an increase in hydrogen ion concentration, which is characteristic of acids. For example, substances like lemon juice and vinegar, which have pH levels well below 7, demonstrate the properties of acidity. In contrast, a pH of exactly 7 signifies a neutral substance, while higher pH values reflect basic or alkaline qualities.