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Predicting Single Replacement, Double Replacement, & Combustion

Predicting Single Replacement, Double Replacement, & Combustion. Single Replacement. Element + Compound  Element + Compound A + BX  AX + B Can have metal & metal replacement, halogen & halogen replacement, or metal & hydrogen replacement. Single Replacement.

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Predicting Single Replacement, Double Replacement, & Combustion

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  1. Predicting Single Replacement, Double Replacement, & Combustion

  2. Single Replacement • Element + Compound  Element + Compound • A + BX  AX + B • Can have metal & metal replacement, halogen & halogen replacement, or metal & hydrogen replacement

  3. Single Replacement • Need to know your activity series! • Just look at your Standard Reduction Potential Table

  4. Single Replacement • Magnesium turnings are added to a solution of Iron (III) chloride

  5. Single Replacement • Sodium is added to water • Whenever water is added to an element visualize it as HOH (make sure you re write it as H2O)

  6. Single Replacement • Chlorine gas is bubbled into a solution of potassium fluoride

  7. Double Replacement • Double Replacement – a reaction involving the exchange of ions between 2 compounds • Of the form: AX + BY  BX + AY

  8. Double Replacement • In order for a double replacement reaction to take place, one of 3 things must be formed: • ____________ • ____________ • ____________

  9. Double Replacement # 1 (Precipitate) • A saturated solution of barium hydroxide is mixed with a solution of iron (III) sulfate

  10. Double Replacement # 2(Formation of a gas) • Formation of a gas (acid + sulfide, sulfite, carbonate, or bicarbonate) • Hydrobromic acid is added to a solution of potassium bicarbonate

  11. Double Replacement # 3 • Sodium hydride is placed into water

  12. Double Replacement #4(Acid Base neutralization) • Acid + base  salt + water • Hydrogen sulfide gas is bubbled through excess potassium hydroxide solution

  13. Combustion • Hydrocarbon + O2 CO2+ H2O • Combustion of methane

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