Chemistry of Life

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Across
  1. 2. solutions with a ph below 7 are considered
  2. 5. if an atom gains electrons, it will then have a blank charge
  3. 11. what is a mixture of water and undissolved materials
  4. 12. what is a pure substance consisting of all the same type of atom
  5. 13. what are composed of chemical compounds
  6. 15. this force of attraction forms
  7. 17. bond formation always involves the blank that surround the nucleus of each atom
  8. 20. sometimes electrons are blank between atoms instead of being transferred
  9. 21. the substance that does the dissolving
  10. 23. what is the basic unit of matter
  11. 24. what has a neutral charge
Down
  1. 1. if an atom loses electrons, it will then have a blank charge
  2. 3. hydrogen atom has a blank charge
  3. 4. the atoms that compose compounds are held together by what bonds?
  4. 6. what is the attraction between molecules of different substances
  5. 7. what is the chemical combination of two or more elements in definite proportions?
  6. 8. the shared electrons spend less time around the
  7. 9. what depends on chemistry
  8. 10. what is that part of the mixture that is evenly mixed
  9. 14. when electrons are gained or lost, blank are formed.
  10. 16. how many known elements are there
  11. 18. what is the attraction between molecules of the same substance
  12. 19. what has a positive charge
  13. 22. what is the substance that is dissolved