Reactions of acids

• What solution do you get when you combine sulphuric acid and copper?

  Copper sulfate
• What gas do you get when you get when you combine sulphuric acid and copper?

  Hydrogen
• What alkali do you combine with sulphuric acid to get sodium sulphate?

  Sodium hydroxide
• What powder do you combine with sulphuric acid to get magnesium sulphate and carbon dioxide?

  Magnesium carbonate
• What happens when an acid reacts with an alkali?

  Salt + water
• What happens when an acid reacts with a metal carbonate?

  Salt + water + carbon dioxide
• What happens when an acid reacts with a metal?

  Salt + hydrogen
• What happens when an acid reacts with a metal oxide (base)?


  Salt + water
• What is the equation to find the rate?


  Volume of product/time
• Is a colour indicator qualitative or quantitative?

  Qualitative
• Is a number indicator qualitative or quantitative?

  quantitative
• Why would powder react quicker than a whole object?

  Greater surface area to volume ratio
• What salt does hydrochloric acid form?

  Metal chloride salt
• What salt does sulphuric acid form?

  metal sulphate salt
• What salt does nitric acid form?

  metal nitrate salt
• What is the test for carbon dioxide?

  Bubble into limewater
• What is the test for hydrogen?

  the pop test.
• What is the test for oxygen?

  glowing flint relights
• What ions form acids?

  H+
• What ions form alkalis?

  OH-
• How is salt formed?

  Hydrogen ions are replaced with metal
• What is an everyday example of neutralisation?

  Chemical weathering of rocks. Graves, buildings and statues are sometimes made of Limestone and marble which contain calcium carbonate. It reacts with acid rain to form a soluble salt, water and carbon dioxide. The rocks then crack and split.
• What two things must particles do for a reaction to occur?

  Collide. Collide with sufficient energy.
• What two things need to happen to increase the rate of a chemical reaction?

  a)increase number of collisions per unit of time. b) increase the energy of collisions
• What three things can you do to increase the rate of a chemical reaction?

  1. Increase temperature 2. Increase concentration of reactants 3. Increase surface area
• What is a reaction?


  Where reactant particles collide and rearrange.
• What does exothermic mean?

  gives out heat
• What kind of reactions are always exothermic?

  Neutralisation reactions
• What is collision theory?


  reactions can only happen when particles collide with sufficient energy and proper orientation.
• How do metal, metal oxides and metal carbonates neutralise acids?

  They react with and 'remove' their H+ ions
• How do alkalis neutralise acids?

  When they are added together the H+ and OH- ions combine to make water.