Chemistry Crossword

123456789101112131415161718192021222324
Across
  1. 1. A mixture of different substances that are not separately visible
  2. 4. A substance that can be pounded or rolled into sheets
  3. 6. The prefix used in a molecual compund when there are five number of atoms
  4. 7. The slow chemical change that occurs when oxygen in the air reacts with a metal
  5. 8. A chemical reaction which takes place in your body
  6. 12. A chemical reaction that occurs when oxygen reacts with a new substance to form a new substance and give off energy
  7. 13. A horizontal row in the periodic table
  8. 14. Pure substances formed due to the attrection of particles of opposite charges
  9. 16. The law that describes that no matter is either formed or destroyed during a chemical reaction
  10. 21. Most reactive non-metals
  11. 23. A reaction that absorbs heat (Turns Cold)
  12. 24. Most stable and unreactive elements
Down
  1. 1. A cloudy mixture in which the tiny particles of a substance are held within another
  2. 2. A pure substance formed when non-metals combine
  3. 3. The new WHMIS(2015)
  4. 5. Most reactive metals
  5. 9. The new materials produced after a reaction
  6. 10. The materials at the start of a reaction
  7. 11. A system that does'nt let any matter escape during a chemical reaction
  8. 15. Positively charged particles
  9. 17. A vertical collumn in the periodic table
  10. 18. A system that lets some matter in a chemical reaction escape (For example a beaker)
  11. 19. Any solid that can be stretched into a long wire
  12. 20. A substance that helps a reaction proceed faster
  13. 22. A reaction that realeases heat energy (Gets Hot)