Sunday, July 9, 2017

3.17: Know that Some Reactions are Reversible and this is Indicated by the Symbol ⇌ in Equations



REVERSIBLE REACTIONS: Reaction that can occur in both directions (reactants can react to form products, and products can react to form initial reactants)

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CHEMICAL EQUATIONS FOR REVERSIBLE REACTIONS:
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When writing chemical equations for reversible reactions, two arrows are used with each having half an arrow head (to indicate reaction can occur in both directions):
s
Dehydration of Hydrated Copper (II) Sulfate:



 Hydrous Copper (II) Sulfate     ⇌     Anhydrous Copper (II) Sulfate     +     Water

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Thermal Decomposition of Ammonium Chloride:


 Ammonium Chloride     ⇌     Ammonia     +     Hydrogen Chloride

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