Answer:
I think the answer is Hydro sphere
Explanation:
Earth includes four components
Atmosphere
Biosphere
Hydro sphere
Geosphere
Here Hydro sphere is the goal of question
Atomic number is your answer.
An educated guess is called estimation
C+2H2 -------> CH4
from reaction 2 mol 1 mol
from the problem x mol 10 mol
x=2*10/1 = 20 mol
Answer: 20 mol of H2.
Answer:
The pOH of a solution is the negative logarithm of the hydroxide-ion concentration. The pH of a solution can be related to the pOH.
I looked it up, so idk if it is right...