Estoria29 Estoria29

02-02-2017
Biology

contestada

After three half-lives, a sample contains 20 grams of parent isotopes. How many grams of the parent isotope were present to start?

Respuesta :

MimzyTheDragon MimzyTheDragon

02-02-2017

160 grams i believe. have a good day

Answer Link

Otras preguntas

Which of the following best describes renewable energy? A. Natural mineral source of energy B. Sources that can be mined or drilled, and will last for a finite

-15p+32p please awnser its rsm hw

PLEASE HURRY FAST!!! Jim is building a pen for his puppy. His puppy has an area of 127 square feet. Which is the best estimate for the number of feet of fencing

1.08 to the 3rd power?

The sun ____ in the East.

A sentence that asks a question ends with a period. True False

Complete the sentence with a word that means the same as "rare"

If x +2 is a factor of p(x) =x²-kx +7, thrn find the value of k.Also,find the other factor of the polynomial ?

Complete the sentence with a word that means the same as "rare"

The sun ____ in the East.