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QUESTION 1 How many miles in 3.00 x 105 mm? hint: 1609 m = 1 mile...

QUESTION 1

  1. How many miles in 3.00 x 105 mm?
    hint: 1609 m = 1 mile

    2.74 x 10 2 mile             

    1.85 x 10 -3 mile          

    1.23 x 10 -2 mile

    1.21 mile

    1.85 x 10 -4 mile

    0.186 mile

    2.74 x 10 -1 mile

    0.0270 mile                   

  2. QUESTION 3

  3. There are 6.40 x 10 2 acres in a square mile (mile 2).   How many m2 (square meters) are there in 0.250 acres?


    Hint: 1 mile = 1.609 km therefore (1.609km/1mile)2 is a unit factor
    Hint: 1 km = 1000 m therefore (1000m/1km) 2 is a unit factor

    706   m 2     

    10.2 m 2

    1.01 x 10 3 m 2

    0.990 m 2

    3.29 x 10 2  m 2

    3.30 x 10 -1 m 2

    7.10 x 10 6   m 2                            

    8.04 x 10 3  m 2        

  4. How many neutrons are in 55Cr?

    31

    37

    21

    16

    32

    44

    35

    29

  5. QUESTION 8

  6. Which of the following is NOT a correct name? (five are correct names for any compound, but one is NOT correct for any compound)

    Iron (II) sulfide

    magnesium chloride

    lithium hypochlorate

    sodium hydroxide

    Copper (I) sulfide

    nitrous acid

  7. QUESTION 13

  8. A metal object at 51.0 oC is heated to 135.0 oC by gaining 9.56 kJ of heat
    from the environment.
    What is the heat capacity, C, of the metal object in units of kJ/ oC?

    0.405 kJ/ oC

    7.51 kJ/ oC

    3.16 kJ/ oC

    0.746 kJ/ oC

    0.114 kJ/ oC

    0.490 kJ/ oC

    6.61 kJ/ oC

    9.25kJ/oC
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Answer #1

i mile = 1609m. 3 x 103 mm x 1m x mile 1609 = 0.186 mile

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