Onionsir Onionsir

15-03-2019
Chemistry

contestada

Someone help please.

Someone help please class=

Respuesta :

cdreddinger cdreddinger

15-03-2019

After 3 half life periods you would have 5 grams of krypton left because half of 40 is 20 half of 20 is 10 and half of 10 is 5

Answer Link

Otras preguntas

Nearly 90 percent of shale oil can be recovered in surface mining, while less than 60 percent can be recovered in underground mining. Surface mining is therefor

A key derived character of sharks and rays that distinguishes them from ray-finned fishes is A) jaws and a swim bladder. B) vertebrae. C) calcified (hard) bones

EEG is to CT as: x-ray photographs is to recordings of brain waves recordings of brain waves is to x-ray photographs radioactive emmissions is to recordings of

Find the variables value

Identify a way to increase the concentration of a gas substance. a) squeeze it into a bigger volume b) squeeze it into a smaller volume c) increa

what is the value of m . M+2M-6=-12+2M

What was Cornelius Vanderbilt famous for

50 POINTS!!!!! PLEASE HELP!!!! Analyze the given diagram of carbon cycle. Part 1: What is happening at location G? Part 2: Which type of energy transformation i

PLEASE ANSWERRRRRRRRRRRRR A student claims that a magnetic field can affect objects that are not in direct contact with each other. Which argument best supports

How does the first paragraph develop the idea that humans are responsible for the rise in bear encounters? A. The author uses a problem-and-solution relations