Question

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

Answer 1

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