Covalent Bonding

Covalent bonding questions

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1. What is the solubility of covalent substances?

  • The water molecules attract the negatively charges particles.
  • They are soluble.
  • They are not soluble, they have strong covalent bonds that are hard to break.
  • The water molecules attract the positively charges particles.
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2. Which two elements form a giant covalent structure?

  • Boron and aluminium
  • Phosphorus and silicon.
  • Carbon and silicon.
  • Fluorine and chlorine.

3. What is the description for simple covalent substances?

  • A simple covalent structure consists of a small number of atoms and a small number of covalent bonds as well. This forms a molecule with weak intermolecular forces.
  • A simple covalent structure consists of strong intermolecular forces between atoms.
  • A simple covalent substance consists of a large number of atoms, but with weak bonds between them.
  • A simple covalent substance consists of oppositely charged particles, but with a small charge difference between the atoms.

4. What is the conductivity of covalent substances?

  • They conduct and sometimes don't when there are not enough charged particles in the substance.
  • They conduct because of the partial charges acting upon the individual atoms in the substance.
  • They do not conduct,the electrons are fixed in bonds and there are no free moving charged particles(EXCEPT GRAPHITE).
  • They do conduct, they consist of free moving electrons.

5. What structures can covalent substances be?

  • Niether
  • Giant structures
  • Giant and simple structures
  • Simple structures

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