Pure substances, mixtures, changes of matter

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Across
  1. 1. acids have this type of taste
  2. 4. strong cleaners, like bleach, usually have ___ pH.
  3. 7. In chemical and physical changes, mass before and after will be the ___.
  4. 8. type of mixture that looks the same throughout (example = solutions and alloys)
  5. 12. type of change that forms a new substance with new chemical composition and properties
  6. 14. Law of conservation of mass states that matter cannot be ___.
  7. 16. amount of matter in a substance, object, or material
  8. 17. decreasing temperature means chemical and physical changes will occur ____.
  9. 18. pure substance found on periodic table
  10. 19. science is ___.
  11. 20. Alka-Seltzer tablets and water results in a chemical change because a new ____ forms
  12. 22. Law of conservation of mass states that matter cannot be ___.
Down
  1. 1. homogeneous mixture made when solute dissolves in solvent
  2. 2. you can ___ temperature to speed up physical and chemical changes
  3. 3. bases turn red litmus paper this color
  4. 4. type of mixture that looks different throughout (example = suspensions and colloids)
  5. 5. has pH above 7
  6. 6. type of change that does not form a new substance; is reversible
  7. 9. pure substance formed when two or more elements chemically bonded together
  8. 10. bases have this type of taste
  9. 11. acids turn blue litmus paper this color
  10. 13. has pH below 7
  11. 15. a base with pH 8 is ___.
  12. 17. acids with small numbers are ___.
  13. 21. pH of neutral substance