Chemistry Crossword

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Across
  1. 6. 118 elements are organizing into this
  2. 7. a substance that reacts whit other substances in a chemical reaction
  3. 9. chemical combination
  4. 15. a chemical reaction which absorbs heat energy
  5. 17. an experiment in which all reactants and all products of a chemical reaction are accounted for
  6. 19. pure substance formed by the combination of metal and a non-metal
  7. 20. two or more substances in which you can see each substance easily
  8. 21. an experiment in which one or more production of a chemical reaction can escape
  9. 22. subatomic particle with a positive electrical charge
  10. 25. one type of matter
Down
  1. 1. a new substance produced in a chemical reaction
  2. 2. subatomic particle with a negative electrical charge
  3. 3. a change in state or apprentice
  4. 4. anything on the periodic table
  5. 5. subatomic particle with no charge
  6. 8. average mass of an element
  7. 10. made when you mix substances together
  8. 11. number of protons an element has
  9. 12. when two or more substance react to form a new substance
  10. 13. a combination of symbols that represent a compound and the amount
  11. 14. in a chemical reaction the total mass of the reactants is equal to the total mass of the porducts
  12. 16. one or more letters that represent on element
  13. 18. pure substance formed by the combination of two non-metals
  14. 23. a chemical change which releases heat energy
  15. 24. two or more substances that look like one substance