Chemistry - review of chapters 1 and 2

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Across
  1. 4. Hydrogen, Boron, and silver are examples of these
  2. 6. A mixture in which individual components cannot be easily picked out
  3. 9. The smallest particle of mass that defines a chemical element
  4. 10. One of the three states of matter
  5. 12. atomic number is 2
  6. 15. atomic number is 7
  7. 18. The substances present at the beginning of a chemical reaction
  8. 19. The first step in the scientific method
  9. 20. The type of physical property that depends how much of it you have
  10. 21. Atomic number is 4
  11. 23. two or more elements bonded together
  12. 25. the amount of space a thing takes up
  13. 27. The first element in the periodic table
  14. 28. It makes up everything
  15. 29. A chemical ________ changes the chemical structure of at least one of the reactants
  16. 31. A subatomic particle that has no charge
  17. 32. The type of mixture that a salad is
  18. 34. The type of science that chemistry is
  19. 35. A positively charged subatomic particle
  20. 36. The place where protons and neutrons can be found
  21. 37. One of the three states of matter
Down
  1. 1. The type of physical property that doesn't depend on the quantity
  2. 2. The state stare of water
  3. 3. The solid that forms sometimes when two liquids are combined chemically
  4. 5. the amount of matter a thing has
  5. 7. atomic number is 5
  6. 8. The science that deals with living things or things necessary for life
  7. 11. atomic number is 6
  8. 13. Atomic number is 3
  9. 14. atomic number is 8
  10. 16. This is produced when ice is heated past 32 degrees Celsius
  11. 17. The central science
  12. 22. A negatively charged subatomic particle
  13. 23. The production of a gas is one of the four ____ to a chemical reaction
  14. 24. The substances present after a chemical reaction has taken place
  15. 26. The type of chemistry that does not involve carbon or living things or things that were living
  16. 30. Another word for a homogeneous mixture
  17. 32. An educated guess that you make after observing things and before experimenting
  18. 33. One of the three states of matter