2.35: Understand Acids and Bases in Terms of Proton Transfer

ACIDS AND BASES (ALKALIS)

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• When atoms or groups of atoms lose or gain Electrons, they form charged particles called Ions - either positively or negatively charged

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*ACIDS:

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• When Acids react, they will lose Electrons to form positive Hydrogen ions ( H+ )
• These H+ Ions make the Aqueous Solution Acidic

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    Example: Hydrochloric Acid

HCl (aq)   →    H+ (aq)    +    Cl- (aq)

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*BASES (ALKALIS):

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• When Alkalis react, they will gain Electrons to form negative Hydroxide ions ( OH- )
• These OH- ions make the Aqueous Solution an Alkali

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    Example: Sodium Hydroxide

NaOH (aq)   →    Na+ (aq)    +    OH- (aq)