Topic 7 - Corrosion by O8Ne5w

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									Topic 7 - Corrosion
Topic 7 Corrosion


Lesson 1/2

These outcomes relate to the
PowerPoint Slides 1-4 on Corrosion
Topic 7 Corrosion       Lesson 1/2


 What   is corrosion?
 Do all metals corrode?
 What term is used for iron
  corroding?
 What causes corrosion?
 What can speed up rusting?
Topic 7 Corrosion        Lesson 1/2


 How does this speed up rusting?
 What is the formula for the iron
  compound formed in corrosion?
 What ion is formed in the first
  stage of iron corroding?
 What type of reaction is this?
Topic 7 Corrosion


Lesson 2/3

These outcomes relate to the
PowerPoint Slides 5-8 on Corrosion
Topic 7 Corrosion        Lesson 2/3


 What   chemical test can detect the
  iron rusting? What are the results?
 What ion does the test detect?
 What is oxidation?
 What ion is formed in the first
  stage of rusting?
Topic 7 Corrosion        Lesson 2/3


 What  ion is formed in the second
  stage of rusting?
 What ion is produced when oxygen
  and water pick up electrons?
 What type of reaction is this?
 What indicator turns pink with
  these ions?
Topic 7 Corrosion


Lesson 3/4

These outcomes relate to the
PowerPoint Slides 11-14 on Corrosion
Topic 7 Corrosion           Lesson 3/4

 When    iron is connected to copper in
  a cell, why does it rust?
 How can this be shown by
  experiment?
 When iron is connected to
  magnesium in a cell why does it not
  rust?
 How can you tell by experiment?
Topic 7 Corrosion


Lesson 4/5

At this point consolidate all you know
so far using Slide 15 and
Assessment 12.2 from the pink textbook
Topic 7 Corrosion


Lesson 5/6

These outcomes relate to the
PowerPoint Slides 16-19 on Corrosion
Topic 7 Corrosion        Lesson 5/6

 What   ways can iron be physically
  protected?
 Why, if tin is scratched, does iron
  rust faster?
 In electroplating, what terminal is
  iron coated with a metal?
 What type of reaction occurs here?
Topic 7 Corrosion


Lesson 6/7

These outcomes relate to the
PowerPoint Slides 20-22 on Corrosion
Topic 7 Corrosion         Lesson 6/7

 What  ways can iron be chemically
  protected?
 What is galvanising?
 Why can galvanising supply physical
  and chemical protection?
 What metal is generally used in
  sacrificial protection?
Topic 7 Corrosion         Lesson 6/7

 Interms of electrons, why is iron
 protected by coating with zinc or
 placing close to magnesium?
Topic 7 Corrosion


Lesson 7/8

At this point consolidate all you
Know so far using Slide 22 and
Assessment 12.1 from the pink
textbook
Topic 7 Corrosion


Lesson 8/9

 No Power Point exists for the last
 few learning outcomes.
 Relates to Workbook 7.9 Core
Topic 7 Cells             Lesson 8/9

 What   is a cell?
 What is an ion-bridge needed for?
 Which way do electrons flow when
  zinc is connected to a carbon rod in
  an acid solution?
 What type of reaction is this?
Topic 7 Cells           Lesson 8/9

 Can you write this ion-electron
  equation?
 What is happening to the hydrogen
  ions?
 What type of reaction is this?
 Can you write this ion-electron
  equation?
Topic 7 Cells             Lesson 8/9

 What  type of rods can connect
  non-metal solutions together?
 When iodine solution is connected
  to the sulphite ion solution , what
  happens to the iodine?
 Can you write the ion-electron
  equation for this?
Topic 7 Cells            Lesson 8/9

 What  type of reaction is this?
 What happens to the sulphite ion?
 Can you write the ion-electron
  equation for this?
 What type of reaction is this?

								
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