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Double Displacement

Double Displacement. What to know. Solubility rules Ions and charges Strong acids and bases Common oxidizing and reducing agents. How to write. Answers must be written in net ionic form (no spectator ions) If the substance is a solid, gas, liquid or insoluble, it must be written together.

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Double Displacement

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  1. Double Displacement

  2. What to know • Solubility rules • Ions and charges • Strong acids and bases • Common oxidizing and reducing agents

  3. How to write • Answers must be written in net ionic form (no spectator ions) • If the substance is a solid, gas, liquid or insoluble, it must be written together. • Saturated solutions of electrolytes are written in ionic form • Strong electrolytes are written in ionic form

  4. Formation of precipitate • Two aqueous solutions react to form an insoluble product. • Silver nitrate and lithium bromide

  5. Formation of molecular substance • Formation of a molecular substance drives reaction to completion. • Water is formed when strong acids react with metallic hydroxides. • Carbon dioxide is formed when metal carbonates are combined with acids.

  6. Formation of a gas • Gases may form directly in a double replacement reaction or can form from the decomposition of a product such as H₂CO₃, H₂SO₃, or NH₄OH.

  7. Other things to know • Metal oxides + water  bases (strong or weak… if strong dissociate). • Nonmetal oxides + water  acids (strong or weak… if strong dissociate). • Concentrated sulfuric acid is written as H₂SO₄ as there is not enough water to dissociate.

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