Metal reactions

• What is produced when a metal reacts with oxygen?


  Metal oxide
• What is oxidation?


  Gain of oxygen
• What is reduction?


  Loss of oxygen
• What is the reactivity series?

  Metals arranged in order of their reactivity
• How are metals ordered in the reactivity series?

  The tendency of the metal to lose electrons and form positive ions
• What is the order of the metals in reactivity series?

  Potassium

  sodium

  lithium

  magnesium

  zinc

  iron

  copper
• What experiments can be done to put metals in their reactivity series?

  How they react with water and acids
• Why would you not use acids to predict the reactivity of sodium and potassium?

  As very reactive would be too dangerous
• What are the products when a metal reacts with water?

  Metal hydroxide and hydrogen
• What are the products when a metal reacts with an acid?

  Salt and hydrogen
• What two non-metals are placed in the reactivity series?

  Carbon and hydrogen
• What is displacement reaction?

  When a more reactive metal can displace a less reactive metal from a compound
• How are unreactive (native) metals found in the earth?

  As the metal itself
• How are metals which are less reactive than carbon extracted from their oxides?

  Using carbon
• How are metals which are more reactive than carbon extracted from their oxides?

  By electrolysis
• What is oxidation in terms of electron?

  Loss of electrons
• What is reduction in terms of electrons?

  Gain of electrons
• What is redox reaction?

  Reduction and oxidation occurring
• What is an oxidising agent?

  A substance that causes another chemical to gain oxygen
• What is a reducing agent?

  A substance that causes another chemical to lose oxygen