Which of the following is equal to avogadro's number.

a) the number of molecules of chlorine in .50 mol cl2
b) the number of molecules of nitrogen in 1 mol n2
c) the number of atoms of bromine in 1 br2
d) the number of atoms in 1 mol co

B) the number of molecules of nitrogen in 1 mol of N2

Explanation:

Avogadro's number is equal to the amount of constituent particles in one mole of substance. It is also equal to 6.0221409e+23

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.