c5

• What is the reactivity series?

  A list of elements ordered by their reactivity
• What is a displacement reaction?

  Reaction: More reactive element replaces less reactive one
• What are the 2 non-metals in the reactivity series?

  Carbon & hydrogen
• What happens when a metal is reacted with oxygen

  A metal oxide is formed
• What happens when a metal is reacted with water?

  A metal hydroxide and hydrogen are produced
• What is a displacement reaction?

  Where a more reactive metal displaces a less reactive one
• What is Oxidation?

  Where an atom loses electrons
• What is reduction?


  Where an atom eats electrons
• What is a redox reaction?

  A reaction where one reactant is oxidised, other one reduced
• What is an ionic equation?

  Equation where charges of reactants, products are featured
• What is the natural form of unreactive metals inside the earth?

  Nuggets or flakes
• What form do more reactive metals found in the earth take?

  Minerals and ores
• What is generally used to separate a metal from its ore using a redox reaction?

  Carbon
• When does rock with metal minerals in become an ore?

  When % of minerals is high enough to be commercially viable
• What is a half-equation?

  An equation that shows a reactant gaining/losing electrons
• What is a salt?

  A compound consisting of a metal and part of an acid
• What salts does Hydrochloric acid form?

  Chlorides
• What salts does sulphuric acid form?

  Sulphates
• What salts does Nitric acid form?

  Nitrates
• What are spectator ions?

  Ions that do not take part in a reaction
• What is a base?

  An ionic compound that can neutralise acids
• What is an alkali? (In relation to bases)

  A soluble base
• Where in the working world is salt making used?

  Fertiliser
• What is a carbonate? (In relation to bases)

  An insoluble base
• What is the difference between strong and weak acids?

  Strong acids ionise completely, weak acids don't (reversible)
• What happens in partial ionisation? (weak acids)


  The point of equilibrium is reached
• What two things can be used to measure pH?

  pH probe and indicator
• What happens to ionic compounds when they are dissolved in water?

  They disassociate (split up)