Which gas would have the slowest rate of diffusion, assuming that all gases are at the same temperature?

krypton (atomic mass 83.8 amu)

argon (atomic mass 39.95 amu)

xenon (atomic mass 131.3 amu)

radon (atomic mass 222 amu)

Sometimes when extraction a polar organic solute into anorganic solvent, brine (a saturated solution of sodium chloride) isused in place of water. What is the advantage of using brinerather than water?

A compound is found to contain 49.5% carbon, 5.19% hydrogen, 16.5% oxygen, and 28.9% nitrogen. its molecular mass is 194.2 g/mol.

A standard galvanic cell is constructed so that the overall cell reaction is as given below where M is an unknown metal.

Use the relative size of the 3s orbital below to answer the following questions about orbitals A-D. (a) Which orbital has the highest value of n? (b) Which orbital (s) have a value of l = 1? l = 2?

Indicate which reactions are redox reactions. check all that apply. check all that apply. 2na (s) + cl2 (g) →2nacl (s) cd (s) + pb2 + (aq) →cd2 + (aq) + pb (s) pb (no3) 2 (aq) + 2licl (aq) →pbcl2 (s) + 2lino3 (aq) c (s) + o2 (g) →co2 (g)

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.

What can happen to a supersaturated silution?

What is the source for georthermal energy

What senses will we use only with permission from a teacher or adult in Physical Science Labs?

Where is chemistry used?