Chemical reactions

• All combustion reactions produce...?

  CO2 and H2O as products!!! ALL OF THEM!
• When both product of a DD reaction are aqueous... N.R.
• Synthesis reaction: Two simple molecule combine to form a complex molecule
• Decomposition: Complex molecules decomposes into its simpler molecules
• Single Displacement Reaction: A element displace another element of the same type in a compound
• Double Displacement Reaction: Element in a compound displaces another elements in a different compound
• Metal Carbonates decomposes into?

  Metal oxide and CO2
• Chlorates decompose into?


  Chlorides and oxygen
• Metal oxide + water = Base
• Base + Acid = Salt + Water
• Non-metal + water = acid
• Electrons transfer from metal atom to metal ion in SD rxn.
• Electrons transfer from non-metal ion to non-metal atom in SD rxn.
• Incomplete reactions can also produce CO and C
• Benefits of complete combustion:

  • Fuel efficient (high amount of energy)
  • No poisonous gases produced
  • Clean flame --> no soot
• Drawbacks of incomplete combustion:

  • Not fuel efficient (less energy released from hydrocarbons)
  • Poisonous gas --> CO
  • Messy flame --> soot made
• Complete combustion occur in PLENTIFUL amounts of oxygen
• Incomplete combustion occur in LIMITED amounts of oxygen
• What is a precipitate?


  A solid formed from two solutions
• What are spectator ions?

  Not involved in a chemical reaction, they are just present and "observe"
• What actually happens in this reaction...

  Cu + 2AgNO3 --> 2Ag + Cu(NO3)2 ?

  Cu atom forces valence electrons on the Ag+ ion
• ATOMS displace an ION in single displacement reactions.
• IONS displace IONS in double displacement reactions