InsertUsernameHere
InsertUsernameHere InsertUsernameHere
  • 02-12-2017
  • Chemistry
contestada

The half-life of an element is 200 years. If a 30 gram sample was originally deposited, how much is left after 200 years? Question 2 options: 10 grams 15 grams 30 grams 60 grams
PLS HELP I NEED AN A

Respuesta :

love209 love209
  • 02-12-2017
the gram that will be left is 15grams
Answer Link

Otras preguntas

what does the zeppelin
What are some reasons why Immigrats people come to the U.S.?
Wages. JoAnn works in the publicity office at the state university. She is paid $10 an hour for the first 35 hours she works each week and $15 an hour for every
why did  the volcano explode
Which of the following oxides can dissolve in water to form a solution that would turn litmus indicator red in color? a. MgO b. K₂O c. CO₂ d. ZnO e. H₂O
How can b^2+9b+14 be re-written?1) (b+7) (b-7)2) (b-7) (b-2)3) (b+7) (b-2)4) (b+7) (b+2)
A ski jumper competing for an Olympic gold medal wants to jump a horizontal distance of 135 meters. The takeoff point of the ski jump is at a height of 25 meter
What is the size and shape of a super volcano?
What organs work with skin?
What two factors determine the state of rocks and metals Inside the earth?