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LC Chemistry
LC Chemistry
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LC Chemistry

Organic Compounds – Tetrahedral & Planar carbons

Tetrahedral carbon compounds

In saturated organic compounds, all of the carbon atoms are tetrahedral.

Chloroalkanes

  • A chloroalkane is an alkane in which one or more hydrogen atoms are replaced with chlorine atoms.
  • Chloroform (
  • ) is an example of a chloroalkane.
  • Chloroalkane’s main uses:
    • For removing oil and grease marks from machinery and in dry cleaning of clothes.
    • Paint stripper.
    • Correcting fluid, e.g. Tippex.

Alcohols

  • The alcohols form a homologous series of organic compounds, of general formula
  • .
  • The -OH group is called the hydroxyl group and is the functional group of alcohols.
    • A functional group... (More)
  • H – Hydrogen
  • He – Helium
  • Li – Lithium
  • Be – Beryllium
  • B – Boron
  • C – Carbon
  • N – Nitrogen
  • O – Oxygen
  • F – Fluorine
  • Ne – Neon
  • Na – Sodium
  • Mg – Magnesium
  • Al – Aluminium
  • Si – Silicon
  • P – Phosphorus
  • S – Sulfur
  • Cl – Chlorine
  • Ar – Argon
  • K – Potassium
  • Ca – Calcium
  • Sc – Scandium
  • Ti – Titanium
  • V – Vanadium
  • Cr – Chromium
  • Mn – Manganese
  • Fe – Iron
  • Co – Cobalt
  • Ni – Nickel
  • Cu – Copper
  • Zn – Zinc
  • Ga – Gallium
  • Ge – Germanium
  • As – Arsenic
  • Se... (More)
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LC Chemistry

All Chemistry Definitions to Learn for Leaving Certificate - Higher Level

The Atom

  • Dalton’s Atomic Theory: All matter is made up of indivisible atoms which cannot be created or destroyed.
  • William Crookes discovered the Electron. Cathode ray tube.
  • JJ Thomson determined that electrons were negative. Found E/M ratio.
  • Robert Millikan’s Oil drop experiment discovered size of electron’s charge.
  • Plum Pudding Model: Solid positive sphere with electrons embedded.
  • Rutherford discovered the Nucleus. Fired alpha particles at gold foil. Proton.
  • Chadwick discovered the neutron by firing alpha particles at beryllium.
  • Energy level is the fixed energy value that an electron in an atom may have.
  • Heisenberg’s Uncertainty Principle states that it is... (More)