Crossword

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Across
  1. 1. Metalloid used in computer chips
  2. 4. The lightest element known
  3. 5. The smallest alkene
  4. 7. A gas with 8 protons and 8 neutrons
  5. 8. Form of Oxygen found in upper atmosphere
  6. 10. Factor affecting rate of reactions
  7. 11. Alkaloid naturally found in Coffee and cocoa
Down
  1. 2. Substance that speeds a chemical reaction without being consumed
  2. 3. Diflurodichloromethane is commonly known as
  3. 4. Group 17 elements of periodic table are called
  4. 6. A process is spontaneous if the free energy of the process is
  5. 9. Solid that forms from a solution during chemical reaction