Test Revision

• An alkaline solution has a PH number greater than?


  7
• Strong acids have a what PH to weak acids?


  lower
• Is hydrochloric a strong or weak acid?


  strong
• Litmus paper is an example of?

  indicator
• A more reactive metal will displace?


  less reactive metal
• When a PH of a solution is low the concentration of hydrogen ions is?


  high
• Oxidation is?


  the loss of electrons
• If the PH of an acid changes from 3 to 2 the concentration of hydrogen ions will increase by a factor of?


  10
• Will sodium displace iron from iron oxide?


  Yes because it is reactive than iron
• Reduction is?


  the gain of electrons
• The PH scale goes from?


  0 to 14
• All acid particles do what to release H+ ions?

  dissociate
• How many acid particles dissociate in weak acids to release H+ ions?


  small amount
• For every decrease of 1 on the PH scale the concentration of hydrogen ions increase by?


  10
• For every decrease of 2 on the PH scale, the concentration of hydrogen ions increase by?


  100
• Concentration measures?


  how much acid their is in a set volume of water
• The larger the amount of acid in a set volume of liquid the more?


  concentrated