Salters B Elements from the Sea Quiz

Test on the unit 'Elements from the Sea'

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  • Created by: jess
  • Created on: 09-03-14 18:14

1. What is the first ionisation enthalpy?

  • The energy needed to remove one electron from each of one mole of isolated gaseous atoms of an element.
  • The energy required to remove one electron from each of the electron shells of one gaseous atoms of an element
  • The energy needed to remove one electron shell from each of one mole of isolated gaseous atoms of an element
  • The energy needed to remove one electron from one mole of atoms of an element.
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2. What are the conditions of Homolytic fission?

  • must be in the stratosphere
  • high temperatures and any state
  • either gas phase with high temperatures OR presence of UV radiation
  • gas phase with high temperatures only
  • presence of UV radiation only

3. How can you define polar molecules?

  • Only molecules with a permanent dipole
  • All molecules which have bonds
  • All molecules with dipoles
  • Only molecules with instantaneous dipoles

4. The boiling points increase with a heavier halogen atom, since the overall number of electrons increases and hence do the id-id bonds.

  • True
  • False

5. How are chlorine and bromine transported?

  • chlorine-as a gas by air travel(in a plane). bromine-as a liquid by rail or road tanker.
  • chlorine-as a liquid by rail or road tanker. bromine-in lead-lined steel tanks supported in strong metal frames
  • chlorine-as a liquid by air travel(in a plane). bromine-as a liquid by rail or road tanker
  • chlorine-as a gas by rail or road tanker. bromine-in lead-lined steel tanks supported in strong metal frames
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