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. How many orbitals and electrons can a d sub-shell hold?

  • 3 orbitals, 6 electrons
  • 2 oribitals, 2 electrons
  • 5 orbitals, 10 electrons
  • 10 orbitals, 5 electrons
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2. 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 needed to remove one electron from one mole of 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

3. What is the fourth ionisation enthalpy?

  • X3+(g) --> X4+(g) + e-
  • X4+(g) --> X4+(g) + e-
  • X(g) --> X4+(g) + e-
  • X(g) --> 4X+(g) + e-

4. If an oxidation state decreases, the compound is...

  • reduced
  • oxidised
  • neutralised

5. Variable costs depend on...

  • The recycling of unreacted feedstock.
  • The amount of product manufactured.
  • The efficiency of a chemical process.
  • The amount of profit a chemical company makes.

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