Reactions with oxygen

• What is the focus of the study in this unit?

  Reactions of elements with oxygen
• Which periods are primarily studied for reactions with oxygen?

  Periods two and three
• Which group does oxygen belong to?

  Group zero
• Why don't we worry about group zero in reactions with oxygen?

  They do not react with oxygen
• What is the reaction of lithium with oxygen?

  Lithium plus oxygen forms lithium oxide
• What is the formula for lithium oxide?

  $Li_2O$
• How do you determine the oxidation states for lithium and oxygen?

  Lithium is $Li^+$$</text{ and oxygen is }O^{2-}$
• How do you balance the equation for lithium oxide formation?

  2Li + O$_2$ → Li$_2$O
• What is the reaction of magnesium with oxygen?

  Magnesium plus oxygen forms magnesium oxide
• What is the formula for magnesium oxide?

  $MgO$
• How do you determine the oxidation states for magnesium and oxygen?

  Magnesium is $Mg^{2+}$ and oxygen is $O^{2-}$
• How do you balance the equation for magnesium oxide formation?

  2Mg + O$_2$ → 2MgO
• What is the reaction of aluminium with oxygen?

  Aluminium plus oxygen forms aluminium oxide
• What is the formula for aluminium oxide?

  $Al_2O_3$
• How do you determine the oxidation states for aluminium and oxygen?

  Aluminium is $Al^{3+}$ and oxygen is $O^{2-}$
• How do you balance the equation for aluminium oxide formation?

  4Al + 3O$_2$ → 2Al$_2$O$_3$
• What is the reaction of fluorine with oxygen?

  Fluorine plus oxygen forms oxygen difluoride
• What is the balanced equation for the formation of oxygen difluoride?

  2F$_2$ + O$_2$ → 2F$_2$O
• Why does fluorine form oxygen difluoride?

  Two fluorines bond with one oxygen
• What are examples of non-metal oxides?

  Carbon dioxide, nitrogen dioxide, sulfur dioxide
• What state are non-metal oxides typically in?

  They are gases
• What is the state of most metal oxides?

  Most are solids
• What type of lattice do most metal oxides form?

  Giant ionic lattice
• What is an example of a giant covalent lattice?

  Silicon dioxide
• What happens when soluble metal oxides dissolve in water?

  They form an alkaline solution
• What is the reaction of sodium oxide with water?

  Sodium oxide plus water gives sodium hydroxide
• What happens when non-metal oxides dissolve in water?

  They form an acidic solution
• What is the reaction of carbon dioxide with water?

  Carbon dioxide forms carbonic acid
• What is the reaction of sulfur dioxide with water?

  Sulfur dioxide forms sulfuric acid
• What are the properties of non-metal oxides and metal oxides?

  • Non-metal oxides:
  • Gases
  • Simple molecules
  • Form acids in water
  • Metal oxides:
  • Solids
  • Giant ionic lattice
  • Form alkalis in water
• How can you summarize the properties of oxides?

  • Non-metal oxides:
  • Gases
  • Form acids
  • Metal oxides:
  • Solids
  • Form alkalis