Which electron configuration represents the electrons of an atom in an excited state? 1
2-5
2
2-8-5
3
2-5-1
4
2-6

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

When a septic tank backs up a goes in to clean it out