Answer:
they often use a radon detector to help forecast earthquakes
I believe the answer is B??????????? Hope this helps
~Queensupreme
The answer is (2) 1.0 dm3. In a balanced equation, the ratio of the mole number of the compounds is equal to the coefficients. And the ratio of volume of gas is equal to the mole number under same condition. So the answer is 1.0 mol.
Answer:
The answer is supposed to be "Electron cloud" or "Electon".