Chemisty Rules

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Across
  1. 3. A new substance produced in a chemical reaction
  2. 5. Occurs when the form of a substance changes, but the kind of the substance remains the same.
  3. 7. The breakdown of a metallic substance due to a chemical reaction which substances in the environment.
  4. 9. The properties that show how a substance reacts when combined with other substances.
  5. 12. A compound produced when iron reacts with oxygen and water in the environment.
  6. 14. A plasic made from scratch derived from plants like corn and potato.
  7. 16. a letter/ letters of the alphabet used to represent an atom of a specific chemical element.
  8. 17. The ability for a substance to transfer heat.
  9. 21. A large molecule made up of small repeating subunits chemically bonded together.
  10. 22. capable of decomposing by the action of micro-organisms.
  11. 23. Both a philosophy and an ancient practice of science
  12. 24. The properties of a substance that can be obercved or examined without changing the composition of a substance.
  13. 27. a row across the periodic table.
  14. 28. A pure substance made up of two or more different atoms chemically bond together.
  15. 30. A substance made up of different types of particles, physically combined.
Down
  1. 1. When the chemical makeup of a substance changes and a new substance or substances are formed.
  2. 2. A column down the periodic table
  3. 4. The ability of a substance to catch fire.
  4. 6. The ability of a substance to transfer electricity
  5. 8. The green patina caused by the reaction of copper with the air or sea water over a long period of time.
  6. 10. How shiny a material is.
  7. 11. The ability of a substance to bend or to be hammered into different shapes.
  8. 13. Does not break down.
  9. 15. A pure substance made up of only one type of atom and can only be broken down into protons, eletrons & neutrons which are made of one proton and one electron. Protons can them be proken down into quarks, anti quarks-downand semi quarks.
  10. 18. a collection of sympols and numbers that represent the number of atoms in a particle of an element or compound.
  11. 19. The ability of a substance to be drawn into wires.
  12. 20. How poisonous a substance is.
  13. 24. A characteristic or feature of a substance.
  14. 25. Reaction Occurs when a substance changes to produce a new substance.
  15. 26. A substance used up in a chemical reaction.
  16. 29. A molecule consisting of two atoms.