Chemistry - Elements, Terminologies and More (Examville)
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Chemistry - Elements, Terminologies and More (Examville)

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Some basic information on a variety of subjects related to chemistry provided for free by Examville

Some basic information on a variety of subjects related to chemistry provided for free by Examville

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Chemistry - Elements, Terminologies and More (Examville) Chemistry - Elements, Terminologies and More (Examville) Presentation Transcript

  • Introduction To Chemistry
  • CHEMISTRY
    • ELEMENT,
    • COMPOUND
    • AND
    • MIXTURE
  • 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
  • ELEMENT Metal Non-Metal (l) (s) (g) (l) (s) (g) – gas (l) – liquid (s) - solid
  • 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
  • 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
  • Carbon C Diamond & Graphite
    • Hydrogen H
    • Use: Fuel
  • Iodine I Use : Antiseptic
    • Neon Ne
    • Use : Neon Lights
    • Nitrogen N
    • Use : Liquid Nitrogen –Refrigeration Coolant
  • Oxygen O Use : Gas for Breathing
  • Phosphorus P Use : Matches
  • Silicon Si Use : Computer CPU
  • Sulphur S Use : Manufacture of Sulphuric Acid
  • What is a Compound ?
    • A Chemical
    • Consists of 2 or more elements chemically combined
    • Chemical Bond between the particles
  • Examples of Compounds
    • Ammonium Chloride
    • Use : Dry Batteries
    • Constituents : H , N , Cl
  • Glucose
    • Use : Carbohydrates
    • Constituents : H , C , O
  • Sodium Chloride
    • Use : Flavor for Food
    • Constituents : Na , Cl
  • Calcium carbonate
    • Use : Building material
    • Constituents : Ca , C, O
  • Sulphuric acid
    • Use : Car Accumulator
    • Constituents : H , S , O
  • Urea
    • Use : Nitrogeneous Fetilizer
    • Constituents : C , H , O , N
  • Copper (II) sulphate
    • Use: Fungicide
    • Constituents : Cu , S , O , H
  • Potassium nitrate
    • Use : Agricultural Fertilizers
    • Constituents : K , N , O
  • Ethanoic acid Use : Vinegar Constituents : C , H , O
  • Trichloromethane (Chloroform) Use : Anaesthetic Cost : C , H , Cl
  • 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
  • Examples of Mixtures Air– Oxygen, Nitrogen, Carbon dioxide, water vapor etc
  • Soil
    • Constituents : Humus, sand,
    • air, water, minerals etc.
  • Milk Components : Lactose, water, proteins, vitamins, minerals etc