Introduction To Chemistry

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  • + ohteikbin Bro. Oh teik bin 3 months ago
    Dear semabkhan,
    Thanks for your kind comments.
  • + semabkhan semabkhan 3 months ago
    That was a nice effort for basic concepts
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Introduction To Chemistry - Presentation Transcript

  1. Introduction To Chemistry A Motivational Lesson
  2. CHEMISTRY
    • ELEMENT,
    • COMPOUND
    • AND
    • MIXTURE
  3. What is an element ?
    • Element
    • A chemical substance
    • Simplest substance
    • Cannot be decomposed to a simpler substance
    • Built up from one type of atoms only
  4. ELEMENT Metal Non-Metal (l) (s) (g) (l) (s) (g) – gas (l) – liquid (s) - solid
  5. Examples of Metals
    • ( Sodium )
    • Na
    • Use :
    • Sodium Lamp
    • Copper Cu
    • Use : Electric Conductor
    • Calcium Ca
    • Use : Calcium ions needed to form bones and teeth
    • Aluminium Al
    • Use: Making of cooking pots and pans
    • Gold ; Aurum Au
    • Use : Jewelry
    • Iron; Ferum Fe
    • Use : Construction of buildings
    • and bridges
    • Lead Pb
    • Uses : Water pipes
    • Pipes for wiring
    • Magnesium Mg
    • Use : Crackers and Fireworks
    • Platinum Pt
    • Use: Jewelry
    • Potassium K
    • Use : Potassium salts
    • - agricultural fertilizers
    • Silver Ag
    • Use : Jewelry
    • Tin Sn
    • Use : Making containers
    • Zinc Zn
    • Uses : Dry cells;
    • Roofing for houses
    • Mercury Hg
    • Use : In Thermometers
  6. Examples of Non-Metals
    • Chlorine Cl
    • Use : Killing germs in water supply
    • Argon Ar
    • Use : Lighting Bulbs
    • Bromine Br
    • Use : Photography
    • Boron B
    • Use : Making
    • Medicine in pharmacy
    • Helium He
    • Use : Filling balloons
  7. Carbon C Diamond & Graphite
    • Hydrogen H
    • Use: Fuel
  8. Iodine I Use : Antiseptic
    • Neon Ne
    • Use : Neon Lights
    • Nitrogen N
    • Use : Liquid Nitrogen –Refrigeration Coolant
  9. Oxygen O Use : Gas for Breathing
  10. Phosphorus P Use : Matches
  11. Silicon Si Use : Computer CPU
  12. Sulphur S Use : Manufacture of Sulphuric Acid
  13. What is a Compound ?
    • A Chemical
    • Consists of 2 or more elements chemically combined
    • Chemical Bond between the particles
  14. Examples of Compounds
    • Ammonium Chloride
    • Use : Dry Batteries
    • Constituents : H , N , Cl
  15. Glucose
    • Use : Carbohydrates
    • Constituents : H , C , O
  16. Sodium Chloride
    • Use : Flavor for Food
    • Constituents : Na , Cl
  17. Calcium carbonate
    • Use : Building material
    • Constituents : Ca , C, O
  18. Sulphuric acid
    • Use : Car Accumulator
    • Constituents : H , S , O
  19. Urea
    • Use : Nitrogeneous Fetilizer
    • Constituents : C , H , O , N
  20. Copper (II) sulphate
    • Use: Fungicide
    • Constituents : Cu , S , O , H
  21. Potassium nitrate
    • Use : Agricultural Fertilizers
    • Constituents : K , N , O
  22. Ethanoic acid Use : Vinegar Constituents : C , H , O
  23. Trichloromethane (Chloroform) Use : Anaesthetic Cost : C , H , Cl
  24. What is a Mixture ?
    • Substance consisting of 2 or more substances physically combined together
    • Components : Elements or/and compounds
    • Components can be separated by physical means
  25. Examples of Mixtures Air– Oxygen, Nitrogen, Carbon dioxide, water vapor etc
  26. Soil
    • Constituents : Humus, sand,
    • air, water, minerals etc.
  27. Milk Components : Lactose, water, proteins, vitamins, minerals etc
  28. The End
    • May you learn Chemistry
    • happily and effectively ! With Metta, Bro. Oh Teik Bin

+ Bro. Oh teik binBro. Oh teik bin, 9 months ago

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