Chemistry Crossword

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Across
  1. 3. This type of change is reversible
  2. 7. The __ is the smallest particles of a chemical compound
  3. 8. Everything in the universe that has mass and volume is made up of this
  4. 11. A subatomic particle with a negative charge
  5. 13. No charged
  6. 14. The state of matter characterized by its non condensed nature and ability
  7. 16. A mixture of two or more substances that can be easily separated
  8. 17. A positively charged particle
  9. 19. Hydrogen and __ make water
Down
  1. 1. A column of elements in the periodic table
  2. 2. This change is not reversible
  3. 4. A __ maintains a defined shape and size
  4. 5. __ do not have a foxed shape and takes the shape of their container
  5. 6. An __ is a substance composed of atoms with identical atomic number
  6. 9. The smallest unit of an element
  7. 10. a mix of something
  8. 12. A material formed by the chemical combinations of elements
  9. 15. A row of elements in the periodic table
  10. 18. The capacity or power to do work