kys

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Across
  1. 2. Uneven distribution of charges within a molecule
  2. 5. Protein that speeds up chemical reactions in cells
  3. 8. Contains carbon and is found in living things
  4. 9. Smallest unit of matter that retains the properties of an element
  5. 11. Molecule Two hydrogen atoms bonded to one oxygen atom
  6. 13. Substance formed when two or more elements chemically bond
  7. 14. Negatively charged subatomic particle found outside the nucleus
  8. 15. Attraction between molecules of the same substance
Down
  1. 1. Atom Element that forms four covalent bonds and is the backbone of life
  2. 3. Attraction between molecules of different substances
  3. 4. Neutral subatomic particle found in the nucleus
  4. 6. Positively charged subatomic particle found in the nucleus
  5. 7. Energy Energy required to start a chemical reaction
  6. 10. Pure substance made of only one type of atom
  7. 12. Small building block molecule that makes up a polymer