crude oil and hydrocarbons

    Cards (31)

    • What should you be able to describe by the end of the video?
      How crude oil is formed
    • What is meant by a hydrocarbon?
      Molecules made of hydrogen and carbon atoms
    • What is an alkane?
      A type of hydrocarbon with specific properties
    • What products are derived from crude oil?
      • Plastics
      • Petrol
      • Pharmaceuticals
      • Cosmetics
    • How is crude oil formed?
      From remains of tiny sea creatures buried in mud
    • What is the nature of crude oil as a resource?
      It is a finite resource
    • What are hydrocarbons?
      Molecules made up of hydrogen and carbon atoms
    • What is the formula for methane?
      CnH2n+2
      otherwise known as hydrogen= 2 x (number of carbons + 2
    • How many carbon atoms are in methane?
      One carbon atom
    • How many hydrogen atoms are in butane?
      Four hydrogen atoms
    • What are covalent bonds?
      Bonds between atoms sharing electrons
    • What is the definition of a hydrocarbon?
      Molecules made up of hydrogen and carbon atoms only
    • What is the general formula for alkanes?
      C<sub>n</sub>H<sub>2n+2</sub>
    • If n equals 2, how many hydrogen atoms are in ethane?
      Six hydrogen atoms
    • How many hydrogen atoms are in propane with three carbon atoms?
      Eight hydrogen atoms
    • How many hydrogen atoms are in butane with four carbon atoms?
      Ten hydrogen atoms
    • Why are alkanes considered saturated molecules?
      Because carbon atoms are fully bonded to hydrogen
    • Which alkane structures should you memorize for the exam?
      • Methane
      • Ethane
      • Propane
      • Butane
    • Where can you find more questions on hydrocarbons?
      In the revision workbook
    • What is the significance of the general formula for alkanes?
      It helps calculate hydrogen atoms from carbon atoms
    • what is viscosity
      thickness of a fluid
    • as the size of the hydrocarbons increase what happens to the flow
      it slows down
    • high viscosity means that flow is what?
      slow
    • what is flammability
      how easily a hydrocarbon combusts (burns)
    • what chain of hydrocarbons are the most flammable
      short chain
    • short chain hydrocarbons have what type of boiling point?
      low boiling point
    • what four hydrocarbons are gases at room temperature
      1. methane
      2. ethane
      3. propane
      4. butane
    • if a hydrocarbon has 3 carbon atoms what’s it called?
      Propane
    • if a hydrocarbon has 2 carbone what’s it called?
      ethane
    • if a hydrocarbon has 1 carbon atoms what’s it called?
      Methane
    • if a hydrocarbon has 4 carbon atoms what’s it called?
      butane
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