baby54600 baby54600

18-05-2017
Chemistry

contestada

How many half-lives are required for three-fourths of the nuclei of an isotope in a sample to decay?

Respuesta :

TealShawol TealShawol

18-05-2017

2 half lives are required.

Answer Link

Otras preguntas

Robert wants to install windows in a bus barn to improve the airflow in the summer months. If Robert makes his own screens, he can save money. To have screen ma

Which number is a solution of the inequality? 6>z(10-z)A 0b 1c 2d 3

Compare and contrast the U.S. acquisition of Hawaii and Alaska PLEASE HELP ME!!

Which sentence demonstrates correct use of the semicolon?

2 1/7+3/7(3x−5)=−4 a. x= -5 1/7 b. x= -3 1/9 c. x= -1 23/49 d. -8/9

our hope is that the astronauts will show good judgment while in the spacecraft

How were many nobles treated under Ivan the Terrible? A. They were given large pieces of property to own. B. They were honored with positions of power.

Astronauts in orbit feel weightless because __________. a. they have no weight in space c. there are no reaction forces on them b. they are moving very fast d.

Like many realist writers, Tolstoy uses a simple writing style in his novella The Death of Ivan Ilych. _______ much of what the author tells readers about Ivan

Explain why food webs give more accurate representation of feeding relationships than a food chain?