C5

• A type of substance made from two or more different elements chemically bonded together

  Compound
• The process by which a substance loses one or more electrons

  Oxidation
• Metal + Oxygen = ???

  Metal Oxide
• Metal + Acid = ??? + ????

  Salt + Hydrogen
• The gas produced when a metal reacts with an acid

  Hydrogen
• Metal + Metal Compound = ???

  Displacement Reaction
• Oxidation + Reduction = ???

  Redox Reaction
• Blast furnace process. What happens at the bottom?

  Pig iron collects and slag forms
• Why is hydrogen used to reduce tungsten ore?

  To prevent impurities from forming
• What process is used to extract highly reactive metals like Aluminium?

  Electrolysis
• What is formed when an acid reacts with a base?

  Salt
• What are some common properties of salts?

  High melting and boiling points, can be used as electrolytes, can form crystal structures, and are soluble in water
• What are the products of an acid-metal reaction?

  Salt and hydrogen gas
• What type of reaction occurs when a base is used to neutralize an acid?

  Neutralization Reaction
• What are the products of a neutralization reaction?

  Salt and water
• What type of reaction occurs when an acid reacts with a metal?

  Acid-Metal Reaction
• What type of reaction occurs when an acid reacts with a base?

  Neutralization Reaction
• What are the reactants in a neutralization reaction?

  Acid and base (such as metal oxides or hydroxides)
• What is the pH range of an alkali?


  pH > 7
• What ion is typically found in alkalis?

  OH- (hydroxide)
• What is the equation for a neutralization reaction between an acid and an alkali?

  Acid + Alkali → Salt + Water
• What is the products of the reaction between a carbonate and an acid?

  Salt, water, and CO2 gas
• How can you test for the presence of CO2 gas?

  By passing the gas through limewater, which will turn cloudy white
• What do acids contain that is responsible for their acidic nature?

  H+ ions
• What determines the strength of an acid?

  The number of H+ ions it contains
• What happens to an acid molecule to release more H+ ions?

  It ionizes more easily
• What type of acid releases a large number of H+ ions?

  Strong acid
• What type of acid releases a small number of H+ ions?

  Weak acid
• Concentration Definition


  Concentrated: large amount of acid chemical in small water, Dilute: small amount of acid chemical in large water