Chemistry Crossword

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Across
  1. 2. a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties
  2. 3. Au on the periodic table
  3. 6. glass lab equipment with wide mouth opening and measurements marked on the side
  4. 7. a usually reversible change in the physical properties of a substance, as size or shape: Freezing a liquid
  5. 9. N on the periodic table
Down
  1. 1. a representation of a chemical reaction using symbols of the elements to indicate the amount of substance,
  2. 4. Pb on the periodic table
  3. 5. the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
  4. 8. the basic unit of a chemical element