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METALS

METALS. INTRODUCTION. Most of the elements in the periodic table are metals. The crust of the earth is the biggest source of metals. Some soluble salts of metals are found in sea water. CHEMICAL PROPERTIES. http://www.youtube.com/watch?feature=player_detailpage&v=TvHo8Q64AXs.

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METALS

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  1. METALS

  2. INTRODUCTION Most of the elements in the periodic table are metals. The crust of the earth is the biggest source of metals. Some soluble salts of metals are found in sea water.

  3. CHEMICAL PROPERTIES http://www.youtube.com/watch?feature=player_detailpage&v=TvHo8Q64AXs REACTION OF OXYGEN IN AIR WITH METALS: Metals react with oxygen of air to produce their respective oxides.

  4. A FOIL OF Cu IS HEATED IN A FLAME,A BLACK LAYER FORMED ON THE FOIL AFTER COOLING IS THE RESULT OF FORMATION OF ITS OXIDE. 2Cu + O2 → 2CuO A FEW CHEMICAL REACTIONS TO BE REMEMBERED..!! Magnesium burns brilliantly in air forming oxide. 2Mg + O2 → 2MgO

  5. http://www.youtube.com/watch?feature=player_detailpage&v=-oAdk038mIQhttp://www.youtube.com/watch?feature=player_detailpage&v=-oAdk038mIQ EVER WONDERED HOW RUSTING OF IRON TAKES PLACE..?? GET REVEALED BY CLICKING..!!

  6. REACTION OF METALS WITH WATER

  7. OBSERVATION: HYDROGEN IS LIBERATED WHEN METALS REACT WITH WATER. 2Na + 2H2O → 2NaOH + H2↑ 3Fe + 4H2O → Fe3O4 + 4H2↑ Zn + H2O → ZnO + H2↑ Mg + H2O → MgO + H2↑

  8. ITS INTERESTING DON’T MISS IT..!!!!!! REACTION OF METALS WITH ACIDS http://www.youtube.com/watch?feature=player_detailpage&v=cecXquddQh4

  9. Mg + 2HCl → MgCl2 + H2 ↑ Zn + 2HCl → ZnCl2 + H2 ↑ 2Fe + 6HCl → 2 FeCl3 + 3H2↑ REACTION OF METALS WITH Dil. HCl!!!

  10. ITS ME MAGNESIUM I AM ZINC IRON  ORDER OF REACTIVITY..!!

  11. Mg + H2SO4 → MgSO4 + H2↑ Zn + H2SO4 → ZnSO4 + H2↑ Fe + H2SO4 → FeSO4 + H2↑ REACTION OF METALS WITH Dil.H2SO4!!!

  12. Zn + 2HNO3 → Zn(NO3)2 + H2↑ Mg + 2HNO3 → Mg(NO3)2 + H2↑ 3Cu + 8 HNO3 → 3 Cu(NO3)2 + 2NO + 4H2O REACTION OF METALS WITH Dil.HNO3...!!

  13. RESPECTIVE CHLORIDES METALS+CL REACTION OF METALS WITH CHLORINE...!! http://www.youtube.com/watch?feature=player_detailpage&v=WVonuBjCrNo

  14. EQUATIONS 2Al + 3Cl2 → 2AlCl3 2Fe + 3Cl2 → 2FeCl3 Cu + Cl2 → CuCl2

  15. LET US RECOLLECT..!! - A final revision http://www.youtube.com/watch?feature=player_detailpage&v=Oh0nv3ErjqU

  16. COPPER > one of the metals known for a long time. > Extraction of copper from its ores was known even in 5000 B.C. > it is a transition element with, > atomic number: 29 > mass number: 64 > Symbol: Cu > electronic Configuration: 1s22s22p63s23p63d104s1

  17. HOW DOES COPPER OCCUR IN NATURE..? THE ORES OF COPPER ARE: * copper pyrites (CuFeS2). * copper glance (Cu2S) * Cuprite (Cu2O) * malachite [CuCO3 Cu(OH)2] * azurite [2CuCO3Cu(OH)2]

  18. LETS SEE HOW COPPER IS EXTRACTED FROM ITS ORE..!! http://www.youtube.com/watch?feature=player_detailpage&v=kHlWaCyljAQ http://www.youtube.com/watch?feature=player_detailpage&v=XWGbUYsChOI

  19. LETS FIND THAT OUT..!! http://www.youtube.com/watch?feature=player_detailpage&v=7ASQIURm5FQ HOW IS COPPER PURIFIED.?

  20. PHYSICAL PROPERTIES > Rose red heavy metal. > malleable and ductile. > a very good conductor of electricity and heat. > It is next only to silver in thermal conductivity. > It has high melting point and high boiling point.

  21. WHAT IS AN ALLOY..? AN Alloy is a homogeneous mixture of (a) two or more metals, or (b) metals and non-metals. An alloy is called a solid solution. The homogeneous mixture is produced in molten state and then solidified.

  22. ALLOYS OF COPPER

  23. IRON * most useful metal industrially hence it may be called “the king of metals.” * a transition element with, * atomic number: 26 * mass number:56 * symbol : Fe * electronic configuration: 1s2, 2s22p6, 3s23p63d6, 4s2.

  24. HOW DOES IRON OCCUR IN NATURE..?? core of the earth contains solid iron under very high pressure, this is surrounded by a layer of molten metals. The ores of iron are: haematite (Fe2O3), magnetite (Fe3O4), limonite (Fe2O3 H2O) siderite (FeCO3).

  25. LETS SEE HOW IRON IS EXTRACTED FROM ITS ORES..!! CHECK THIS LINK..!! http://www.youtube.com/watch?feature=player_detailpage&v=8s8rcnxqLIw

  26. PHYSICAL PROPERTIES > Iron is a greyish white solid metal. > Pure iron is soft. >Iron is a ferromagnetic substance. >Its melting point is 1808K.

  27. ALLOYS OF IRON

  28. HOPE YOU ENJOYED LEARNINGTHE LESSON..!!

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