malenadance
malenadance
26-02-2017
Chemistry
contestada
how does helium form
Respuesta :
ArabellaDeangelis
ArabellaDeangelis
27-02-2017
Most terrestrial helium present today is created by the natural radioactive decay of heavy radioactive elements called Thorium and Uranium.
Answer Link
VER TODAS LAS RESPUESTAS ( 72+ )
Otras preguntas
How do contact forces such as friction differ from gravitational and magnetic forces?
How do you turn fractions into decemals
what is angle y and why ?? when b is 90
what volume measured in stp will 3.75 grams of helium gas occupy?
The word percent (%) means " divided by _________?"
A bag contains 10 red chips, 8 white, 6 blue, and 8 yellow. You randomly pick one chip from the bag. Without replacing the chip, you randomly pick a second chip
How can pioneer species decrease
log3/5 25/9=x-2 ? algebra 2
which project came first: Gemini, Space Shuttle, Mercury, Apollo?
When 0.2mol of calcium reacts with 880g of water 2.24L of hydrogen gas form at STP How would the amount of hydrogen produced change if the volume of water was d
