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5 Written questions

5 Matching questions

  1. Define the potential energy level of electrons and the Kinetic energy level.
  2. Do Hydrogen Bonds only occur with water molecules?
  3. What are covalent bonds? Single? Double?
  4. What is an element?
  5. What is a hydrogen bond? Strong or weak?
  1. a Two or more atoms SHARING ELECTRONS.
    Single covalent bonds - sharing of one pair of valence electrons
    Double - sharing of two pairs of valence electrons
  2. b Potential energy - stored energy due to location or structure; ready to use energy
    Kinetic energy - energy in motion or movement; currently using
  3. c No! Example: NH₃ (ammonia) is a hydrogen bond, the partial negative of Nitrogen bonds with the partial positive of Hydrogen.
  4. d Partial plus of a Hydrogen in a polar molecule forms a bond with a Partial Minus of another polar molecule; Weak bond.
  5. e A substance that cannot be broken down to other substances by chemical reactions.

5 Multiple choice questions

  1. Covalent bonds are the SHARING of electrons, whether it be equally or unequally
    Ionic bonds are the GAINING or LOSING of electrons, NOT SHARING
  2. The sharing of electrons UNEQUALLY; atoms have differing electronegativities
  3. a substance consisting of two or more different elements combined in a fixed ratio.
  4. First shell - 2
    Second shell - 8
    Third shell - 8
  5. Electron gaining or losing; e⁻ TRANSFER (NOT SHARING) between two atoms

5 True/False questions

  1. Choose 2 elements essential to life, draw the electron configuration of each as an ion and note the charge of the ion.Potential energy - stored energy due to location or structure; ready to use energy
    Kinetic energy - energy in motion or movement; currently using

          

  2. Difference between compound and molecule?Covalent bonds are the SHARING of electrons, whether it be equally or unequally
    Ionic bonds are the GAINING or LOSING of electrons, NOT SHARING

          

  3. Are Van der Waals interactions weak or strong?The electrons on the outermost orbital shell

          

  4. What bond do two oxygen's share?The sharing of electrons UNEQUALLY; atoms have differing electronegativities

          

  5. What is the atomic mass?The number of protons in an atom.