Unit 2 Chemistry Vocab

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Across
  1. 4. a reaction that absorbs energy
  2. 5. a reaction that releases energy
  3. 6. elements or compounds that enter into a chemical reaction
  4. 10. the center of an atom
  5. 14. pure substance that has one type of atom
  6. 16. particle found in the nucleus with no charge
  7. 17. substance that speeds up the rate of a chemical reaction
  8. 18. subunit made up of 5-carbon sugar
  9. 19. macromolecule made up of amino acids
  10. 20. compound with amino group on one end and a carboxyl group on the other end
  11. 21. substance formed as a result of a chemical reaction
  12. 22. compound made of carbon, hydrogen, and oxygen atoms
  13. 24. positively charged particle found in the nucleus of an atom
  14. 25. molecules composed of many monomers
  15. 27. A negitive charged particle that orbits the nucleus
Down
  1. 1. reactant of an enzyme-catalyst reaction
  2. 2. the number of protons and electrons in an atom nucleus
  3. 3. energy that is needed to get a reaction started
  4. 7. equal to the number of protons and electrons
  5. 8. type of bond between atoms
  6. 9. an electron that is on the outer side of an atom
  7. 11. a letter abbreviation of an element
  8. 12. macromolecule made up of carbon and hydrogen and contains fats
  9. 13. A large organic molecule
  10. 15. macromolecule that has hydrogen, oxygen, nitrogen,and carbon
  11. 20. the basic unit of matter
  12. 23. biological catalyst
  13. 26. a combination of 2 or more elements connected by bonds