1. How many molecules are in 2.00 moles of H,0? x 6.02x10-atoms 1 mol
2. How many moles are in 8.30 X 102 molecules of H2O? *
1 mol
6.02 x 102 molecules
3. How many molecules are in 0.500 moles of H,? X
6.02x1023
atoms
1 mol
6.02x10- atoms
4. How many atoms are in 1.00 moles of He? X
1 mol
5. How many atoms are in 1.50 moles of Hg? X
6.02x10-atoms
1 mol
6. How many molecules are in 2.50 moles of O,? X
6.02x10- atoms
1 mol

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

2b2t

explanation:

2b2t

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.