After 3 half-lives, 125 grams of the parent isotope will remain.
Answer:
they don't depend on the temperature
Evaporation of the solution
Answer:
1,2,1,2
Explanation:
You would need only one of the CH4 but 2 of the O2 then 1 CO2 and 2 H2O on each side of the equation you now have 1 carbon, 4 hydrogen, and 4 oxygen.