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5 Written questions

5 Matching questions

  1. oxidation-reduction reaction
  2. pH
  3. atomic nucleus
  4. ionic bonds
  5. isotope
  1. a An electron-transport reaction in which the molecules losing electrons become oxidized and those gaining electrons become reduced
  2. b An atom of the same element that differs only in the number of neutrons
  3. c The central region of an atom
  4. d A scale used to indicate the concentration of an acid or a base
  5. e The attractive forces between ions of opposite charge

5 Multiple choice questions

  1. 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. A reaction that results in the formation of a macromolecule when water is removed from between the two smaller component parts
  3. The component that dissolves in a solvent
  4. Negatively charged particles (OH) composed of oxygen and hydrogen atoms released from a base when dissolved in water
  5. Weak attractive forces between molecules; important in determining how groups of molecules are arranged

5 True/False questions

  1. elementsFundamental chemical substances that are made up of collections of only one kind of atom


  2. productsNew molecules resulting from a chemical reaction


  3. solidThe component that dissolves in a solvent


  4. protonThe particle in the nucleus of an atom that has a positive electrical charge


  5. phosphorylation reactionThe reaction that takes place when a cluster of atoms, known as a phosphate group is added to another molecule


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