Chemistry

Chemistry, 06.07.2019 12:40, mcccreamullinsr

What is a reasonable estimate for the radius of an atom?

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Chemistry, 02.08.2019 16:20, ronalescobar2002

Rutherford's experiment with gold estimate the radius of a gold atom to be approximately 1x10^-9 cm. suppose the radius of the nucleus is the same as a basketball. would the volume of the atom be bigger or smaller than that of a typical domed athletic stadium? show a little math to support your answer.

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Mathematics, 02.09.2019 01:30, PrincessKehlani15

Apizza place has four drivers to deliver their pizzas. the average mileage for each car is between 22 and 24 miles per gallon. each driver travels between 85 miles and 95 miles a day. the pizza shop estimates that they will need about 11 gallons of fuel a day for all the vehicles. is this a reasonable estimate? yes, the estimate given is reasonable. no, the estimate should be lower. no, the estimate should be higher.

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Mathematics, 05.10.2019 12:40, Erin1535

Apizza places for drivers to deliver their pizzas. the average mileage for each car is between 21 and 24 miles per gallon. each driver travels between 79 miles and 89 miles a day. the pizza shop estimates that they will need about 10 gallons of fuel a day for all the vehicles. is this a reasonable estimate? a: no, the estimate should be higher. b: yes, the estimate is reasonable. c: no, the estimate should be lower.

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Physics, 09.11.2019 07:31, kelchalyssa

Consider a nonionized phosphorus donor atom in a si crystal. (a) what is the "bohr radius" of the resulting "atom? " (b) estimate how many si atoms are contained within a sphere of this "bohr radius"? (c) estimate how high the concentration of impurities would have to be for the "bohr radii" to overlap, and what would you expect to happen in this case?

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