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5 Written questions

5 Matching questions

  1. heat
  2. potential energy
  3. pH
  4. chemical bonds
  5. formula
  1. a Pertains to a chemical compound; describes what elements it contains (as indicated by a chemical symbol) and in what proportions they occur (as indicated by the subscript number)
  2. b The energy an object has because of its position
  3. c The total internal kinetic energy of molecules
  4. d forces that combine atoms or ions and hold them together
  5. e A scale used to indicate the concentration of an acid or a base

5 Multiple choice questions

  1. The smallest particles of a chemical compound; the smallest naturally occurring parts of an element or a compound
  2. A negatively charged particle moving at a distance from the nucleus of an atom; balance it the positive charges of the protons
  3. Processes that occur when large molecules are broken down into smaller parts by the addition of water
  4. The number of protons in an atom
  5. Electrically unbalanced or charged atoms

5 True/False questions

  1. covalent bondA negatively charged particle moving at a distance from the nucleus of an atom; balance it the positive charges of the protons

          

  2. phosphorylation reactionProcesses that occur when large molecules are broken down into smaller parts by the addition of water

          

  3. ionic bondsforces that combine atoms or ions and hold them together

          

  4. hydroxide ionsNegatively charged particles (OH) composed of oxygen and hydrogen atoms released from a base when dissolved in water

          

  5. neutronA negatively charged particle moving at a distance from the nucleus of an atom; balance it the positive charges of the protons