Chemistry Crossword

12345678910111213141516171819202122232425
Across
  1. 1. any subject of importance about which people have strong, conflicting points of view
  2. 5. group 17 elements in the periodic table; the most reactive non-metals
  3. 8. substance substance made of only one kind of matter, which has a unique set of properties
  4. 12. horizontal row of elements in the periodic table
  5. 14. system an experiment in which one or more products of a chemical reaction can escape
  6. 15. the basic unit of a chemical element
  7. 16. energy stored in chemicals and released when chemicals react
  8. 17. mass of a substance that can dissolve in a given amount of solvent to form a saturated solution at a given temperature
  9. 19. element that has both metallic and non- metallic properties
  10. 20. homogeneous mixture; mixture of two or more pure substances that looks like one substance
  11. 22. anything that has mass and occupies space
  12. 23. table a table in which the elements are organized by their physical and chemical properties
  13. 24. neutral particle in the nucleus of an atom
  14. 25. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
Down
  1. 2. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e., the number of protons in the nuclei of its atoms
  2. 3. vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a family
  3. 4. Workplace Hazardous Materials Information System; a system of easy-to-see warning symbols on hazardous materials
  4. 6. cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out p
  5. 7. positively charged particle in the nucleus of an atom
  6. 9. amount of mass in a given volume of a substance
  7. 10. change that results when two or more substances react to create a different substance or substances
  8. 11. ability of a substance to conduct electricity or heat
  9. 13. gases group 18 elements in the periodic table; the most stable and unreactive elements
  10. 18. chemical combination of two or more elements in a specific ratio
  11. 21. shiny, malleable, ductile element that conducts electricity