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After completing this topic you should be able to :

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Presentation on theme: "After completing this topic you should be able to :"— Presentation transcript:

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2 After completing this topic you should be able to :

3 Different metals can be reacted with pure oxygen to observe how well the react. The amount of energy given out when a metal reacts gives a measure of its reactivity. metal powder ceramic wool HEAT KMnO 4 Most reactive Least reactive

4 When m mm metals react their atoms l ll lose electrons to form their ions. This means all metals undergo an O OO OXIDATION REACTION when they react.

5 4 mol l-1 hydrochloric or sulfuric acid metal The speed of production of hydrogen gives a measure of the reactivity of the metal. Most reactive Least reactive

6 The zinc atoms are O OO OXIDISED during the reaction with an acid.

7 potassium calcium Mg powder water H2H2H2H2 magnesium Most reactive Least reactive

8 The sodium atoms are O OO OXIDISED during the reaction with water.

9 METAL REACTION WITH : WATER ACID OXYGEN potassiumsodiumlithiumcalciummagnesiumaluminiumzincirontinleadcoppermercurysilvergold

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11 + When a metal reacts with oxygen, the electrons lost by the metal are gained by the o oo oxygen molecules (O2), changing them into o oo oxide ions (O2-). + The ionic equation for magnesium reacting with oxygen shows this.

12 Complete the OXIDATION & REDUCTION examples on page 2 of the Metal Chemistry and Electricity & Chemistry Examples Booklet.


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