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Standard Barbering - Chapter 7 Basics of Chemistry | Latest Version | 2024/2025 | Rated A+ What does the pH scale measure? Acidity or alkalinity of a substance What pH level is considered neutral? 7 What type of solution has a pH below 7? Acidic What type of solution has a pH above 7? Alkaline What is the natural pH level of hair and skin? 4.5 to 5.5 2 What happens when acids and alkalis are mixed together in equal parts? They neutralize each other. What is an example of an organic compound commonly found in hair products? Alcohol What type of chemical reaction releases heat? Exothermic reaction What type of chemical reaction absorbs heat? Endothermic reaction What is the main element found in hair? Keratin (a protein) What term describes the process of breaking down substances using water? Hydrolysis

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standard barbering chapter 7 basics of chemistry

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Standard Barbering - Chapter 7 Basics
of Chemistry | Latest Version | 2024/2025
| Rated A+
What does the pH scale measure?

✔✔ Acidity or alkalinity of a substance

What pH level is considered neutral?

✔✔ 7

What type of solution has a pH below 7?

✔✔ Acidic

What type of solution has a pH above 7?

✔✔ Alkaline

What is the natural pH level of hair and skin?

✔✔ 4.5 to 5.5

1

, What happens when acids and alkalis are mixed together in equal parts?

✔✔ They neutralize each other.

What is an example of an organic compound commonly found in hair products?

✔✔ Alcohol

What type of chemical reaction releases heat?

✔✔ Exothermic reaction

What type of chemical reaction absorbs heat?

✔✔ Endothermic reaction

What is the main element found in hair?

✔✔ Keratin (a protein)

What term describes the process of breaking down substances using water?

✔✔ Hydrolysis

2

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