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Separation Techniques/Acids & Bases (Properties of acids and bases…
Separation Techniques/Acids & Bases
Properties of acids and bases
Acids and alkalis
Properties
Acids (sour)
alkali (bitter)
pH values
alkaline higher than 7
neutral = 7
acids : below 7
Types of indicators
Universal Indicator
Litmus paper
pH meter
acids in foods
uses
kill germs , improve taste of food
negative effects
gastric pain
tooth decay
Characteristics
Sourness
Separation methods
purification
Purify extracted substances
extraction
obtain substance from mixtures