Chemistry

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Across
  1. 3. 0.0 - 0.4
  2. 4. force the weakest inter-molecular force
  3. 7. from 0.5 - 0.9
Down
  1. 1. bond the strongest inter-molecular force
  2. 2. the 25th element on the periodic table
  3. 5. nitrate is always
  4. 6. neutral pH