The area of the 48 contiguous states is 3.02 x 106 miles2. Assume that these states are completely flat, no mountains and no valleys. What mass of water would cover these states with a rainfall of two inches?

1 mile = 1,609 meters

3.02E6 mi^2 x (1609^2m^2/mi^2) = 7.818E12 m^2

1 in= 2.54 cm => 2 in = 5.08cm = .0508m

7.818E12 m^2 x .0508m = 3.97E11 m^3

1 cubic meter = 1,000,000 cubic centimeters

3.97E11 m^3 x (1,000,000 cm^3 / m^3) = 3.97E17 cm^3

1000 cm^3 = 1L

3.97E17 cm^3 x (1L / 1000cm^3) = 3.97E14 L  

or 3.97 x 10^14 L

convert to grams since 1L is 1000g

(3.97x10^14) x1000g which is 3.974x10^ 17g which is the final ans

Explanation:

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.