The Role of Water in Showing Acidic and Alkaline Properties

A substance can be classified as acid if it can produce

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What is an alkali?

• Substance that ionise in water to produce hydrogen ions

• Substance that produce water when react with metal

• A base that is soluble in water

Basicity of acids is ...

• Reaction to produce salt and water

• Number of hydrogen ions produces by acid molecule when ionise in water

• Number Number of hydroxonium ions produces by acid molecule when ionise in water

Choose classification of acids

• Monoprotic acid

• Triprotic acid

• Protic acid

• Diprotic acid

What is the classification for carbonic acid

• Monoprotic acid

• Diprotic acid

• Triprotic acid

What are the examples of alkaline solution?

• Hydrochloric acid

• Sodium hydroxide solution

• Vinegar

• Soap water

What are the examples of acid ?

• Sodium hydroxide solution

• Soap water

• Hydrochloric acid

• Vinegar

Acids

• pH value less than 7

• Tastes bitter

• Corrosive

• Reacts with metals to produce hydrogen gas

Tags

NGSS.HS-PS1-1

Alkali

• pH value more than 7

• Tastes bitter

• Corrosive

• Tastes sour

Acid in soft drink:

• Hydrochloric acid, HCl

• Sulfuric acid, H₂SO₄

• Ethanoic acid (acetic acid), CH₃COOH

• Carbonic acid, H₂CO₃