1) Metal Oxides

• Metals react with oxygen to form metal oxides.
• , when magnesium is burned in air it reacts with oxygen to form magnesium oxide. The magnesium gains oxygen in the reaction, so it is oxidise
• Metal oxides can be reduced by removing oxygen.

  For example, when lead(IV) oxide is heated with carbon: -the lead(IV) oxide loses oxygen so it is reduced

  -the carbon gains oxygen so it is oxidised.