Chemistry

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Across
  1. 1. The change of a solid into a liquid.
  2. 2. A material that does not allow electricity or heat to pass through easily.
  3. 6. Two or more atoms chemically bonded together.
  4. 9. A negatively charged particle found in an atom.
  5. 15. A mixture formed when a solute dissolves in a solvent.
  6. 17. A substance that speeds up a chemical reaction without being used up.
  7. 18. The chart that organizes all known chemical elements.
  8. 21. The amount of matter in an object.
  9. 22. A particle in the nucleus of an atom with no electric charge.
  10. 24. A soluble base with a pH greater than 7.
  11. 25. A positively charged particle found in the nucleus of an atom.
  12. 27. The movement of particles from a region of high concentration to low concentration.
  13. 28. A pure substance made of only one type of atom.
  14. 29. A material that allows electricity or heat to pass through easily.
Down
  1. 1. Two or more substances that are not chemically combined.
  2. 3. The liquid that dissolves a solute.
  3. 4. A tiny piece of matter that makes up substances.
  4. 5. The change of a liquid into a solid.
  5. 7. A technique used to separate substances in a mixture.
  6. 8. The amount of space an object occupies.
  7. 10. The change of a gas into a liquid.
  8. 11. A substance with a pH of exactly 7.
  9. 12. A method used to separate an insoluble solid from a liquid.
  10. 13. A substance with a pH less than 7.
  11. 14. A process in which new substances are formed.
  12. 16. Mass per unit volume of a substance.
  13. 19. The change of a liquid into a gas at the surface.
  14. 20. The smallest particle of an element that retains its properties.
  15. 23. A substance formed when two or more elements are chemically combined.
  16. 26. The substance that is dissolved in a solvent.