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2. Variable costs depend on...

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

3. What is a nucleophile?

  • They have one of more lone pairs of electrons that they can donate to form new bonds.
  • They donate the electrons in their outer shell to other ions
  • They have only one lone pair of electrons
  • React with halogens

4. Define electronegativity

  • How good an atom is at gaining/losing electrons
  • The degree to which an atom of an element repels electrons
  • The degree to which an atom of an element attracts electrons
  • The degree to which an atom of an element gets rid of its electrons

5. 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

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