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5 Written questions

5 Matching questions

  1. hydrolysis reactions
  2. salts
  3. oxidation-reduction reaction
  4. compound
  5. atomic nucleus
  1. a Processes that occur when large molecules are broken down into smaller parts by the addition of water
  2. b An electron-transport reaction in which the molecules losing electrons become oxidized and those gaining electrons become reduced
  3. c Ionic compounds formed from a reaction between an acid and a base
  4. d The central region of an atom
  5. e A kind of matter that consists of a specific number of atoms (or ions) joined to each other in a particular way and held together by chemical bonds

5 Multiple choice questions

  1. The attractive force formed between two atoms that share a pair of electrons
  2. states that all matter is made up of tiny particles that are in constant motion
  3. A reaction that results in the formation of a macromolecule when water is removed from between the two smaller component parts
  4. The smallest particles of a chemical compound; the smallest naturally occurring parts of an element or a compound
  5. The phase of matter in which the molecules are more energetic than the molecules of a liquid, resulting in only a slight attraction for each other

5 True/False questions

  1. formulaPertains 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. laws of conservation of energythe law that states that energy is never created or destroyed


  3. solventThe phase of matter in which the molecules are packed tightly together; they vibrate in place


  4. mixtureMatter that contains two or more substances not in set proportions


  5. atomic mass unitThe weight of an atomic nucleus, expressed in atomic mass units (the sum of the protons and neutrons)