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5 Written questions

5 Matching questions

  1. What is a hydrogen bond? Strong or weak?
  2. Define Subatomic particles, their charges, where they're found, and their relative mass.
  3. What is a compound?
  4. What's a positive ion called? A negative ion?
  5. What is the atomic mass?
  1. a Partial plus of a Hydrogen in a polar molecule forms a bond with a Partial Minus of another polar molecule; Weak bond.
  2. b Positive ion = CATION
    Negative ion = ANION
  3. c a substance consisting of two or more different elements combined in a fixed ratio.
  4. d Protons - positive; in nucleus; 1 dalton (or amu)
    Neutrons - neutral; in nucleus; 1 dalton (or amu)
    Electrons - negative; found outside nucleus; 0 nothing
  5. e The number of protons and neutrons in nucleus.

5 Multiple choice questions

  1. Anything that takes up space and has mass. Ex: Air; something that isn't matter: light (think of the filling up a balloon metaphor)
  2. Atoms interacting with each other to share, take, or give electrons.
  3. The electrons on the outermost orbital shell
  4. Polar covalent bond.
    (it's when there's more than one polar molecule that hydrogen bonding takes place)
  5. Ex: O - only 6 rings on outer shell, so it wants to gain 2, making it 2- charge

5 True/False questions

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


  2. What is electronegativity?2 or more atoms held together by covalent bonds


  3. What are covalent bonds? Single? Double?The electrons on the outermost orbital shell


  4. Are Van der Waals interactions weak or strong?Weak.


  5. What are ionic bonds?Electron gaining or losing; e⁻ TRANSFER (NOT SHARING) between two atoms