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Dekalb Reads Assignment 2.1 A

Ch. 2.1 WHAT IS MATTER

Read pages 38-41 and answer the questions. Maximum Points possible: 40

  1. Making glass involves changing some raw materials, what are they?
  2. What is chemistry?
  3. What properties of glass make it useful building material?
  4. Give two examples of the things that are not matter.
  5. Why are they not matter?
  6. What kind of things can be called as matter?
  7. What properties wood make it a good choice for furniture and building material.
  8. What happens to wood when it gets hot?
  9. What is Carbon?
  10. What are elements made of?
  11. Diamond is made of the atoms of an element. Name that element.
  12. How many elements are there?
  13. How is a compound made?
  14. Give two examples of elements.
  15. What is Nylon?
  16. What does the basic unit of Nylon contain?
  17. Which element is most abundant in the earth? What is its percentage?
  18. Which element is most abundant in human body?
  19. Name the second most abundant element in earth.
  20. Name the second most abundant element in human body?
  21. What is the formula of water?
  22. What is the chemical name of rust?
  23. What is the composition of rust?
  24. Name the elements that combine to form water.
  25. How many atoms of bromine form a molecule of Bromine?
  26. How many atoms of Sulfur are there in a molecule of sulfur?
  27. How will you represent the molecule of sulfur containing 8 atoms?
  28. Write down the formulas of Oxygen, Hydrogen, chlorine and phosphorous.
  29. What does a chemical formula indicate?
  30. What does a chemical formula show?
  31. How will you write a chemical formula?
  32. How many atoms of different elements are present in a molecule of indigo?
  33. What is the chemical formula of table sugar?
  34. What does the number placed in front of a chemical formula show?
  35. A sugar molecule is composed of atoms of three elements. What are they?
  36. How many atoms of different elements are present in a sugar molecule?
  37. What is a pure substance?
  38. Is air an element, compound or a mixture?
  39. Can you separate the components of a mixture?
  40. What kind of substances can not be broken down by physical change? Give one example of such substance.
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