Acids and Bases

Litmus

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Bases

Bases turn litmus from red to blue

Acids turn litmus from blue to red

Acids and Bases

Neutral substances

pH scale

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Mildly acidic

Mildly basic

Highly basic

Highly acidic

0-2 on pH scale: Highly acidic

3-6 on pH scale: Mildly acidic

7 on pH scale: Neutral

8-12 on pH scale: Mildly basic

13-14 on pH scale: Highly basic

Hydrochloric acid in stomach , Battery acid: Highly acidic

Lemon juice , Vinegar , Orange juice and clean rain: Mildly acidic

Saliva , Milk , Distilled water , Blood: Neutral

Toothpaste , Window cleaner , Smelling salts ,Cleaning agent , Washing soda , Oven spray: Mildly basic

Caustic soda: Highly basic

Acid-Base indicators