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Monday, July 8, 2013

SAS #1-12 p.130

1) a) physical
    b) chemical
    c) chemical
    d) physical

2) a) physical
    b) physical
    c) physical
    d) chemical

3) a) chemical
    b) physical
    c) chemical
    d) physical

4) a) chemical
    b) chemical
    c) physical
    d) physical

5)

6)

7) a) metal
    b) nonmetal
    c) metal
    d)  nonmetal

8) a) metal
    b) metalloid
    c) nonmetal
    d) metal

9) Silicon, and Boron (B)

10) a) idoine is a nonmetal - it would shatter
      b) zirconium is a metal - it would flatten
      c) phosphorus is a nonmetal - it should shatter
      d) nickel is metal - it would flatten

11) Two properties that make nonmetals unsuitable for electric wiring are, there not malleable, and do not conduct electrically

12) Three properties that make metals suitable for use in coins are, tey dont brake, there shiny and there malleable

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