Unit 2 Vocab

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Across
  1. 6. - attraction between molecules of the same substance
  2. 8. - a compound that produces hydroxide ions (OH-) in solution; a solution with a pH of more than 7
  3. 10. - mixture of water and nondissolved material
  4. 11. - molecules composed of many monomers; makes up macromolecules
  5. 12. - dissolving substance in a solution
  6. 14. - pure substance that consists entirely of one type of atom
  7. 16. - negatively charged particle; located in the space surrounding the nucleus
  8. 18. - elements or compounds produced by a chemical reaction
  9. 20. - smallest unit of most compounds that displays all the properties of that compound
  10. 25. - subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
  11. 27. - elements or compounds that enter into a chemical reaction
  12. 28. - a compound that forms hydrogen ions (H+) in solution; a solution with a pH of less than 7
Down
  1. 1. - the center of an atom, which contains the protons and neutrons
  2. 2. - compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  3. 3. - force of attraction between different kinds of molecules
  4. 4. - macromolecule that contains carbon, hydrogen, oxygen and nitrogen; needed by the body for growth and repair
  5. 5. - reactant of an enzyme-catalyzed reaction
  6. 7. - one of several forms of a single element, which contains the same number of protons but different numbers of neutrons
  7. 9. - protein catalyst that speeds up the rate of specific biological reactions
  8. 13. - substance that is dissolved in a solution
  9. 15. - small chemical unit that makes up a polymer
  10. 17. - the basic unit of matter
  11. 19. - substance formed by the chemical combination of two or more elements in definite proportions
  12. 21. - a compound that prevents sharp, sudden changes in pH
  13. 22. - material composed of two or more elements or compounds that are physically mixed together but not chemically combined
  14. 23. - type of mixture in which all the components are evenly distributed
  15. 24. - substance that speeds up the rate of a chemical reaction
  16. 26. - macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes