If two stars have the same absolute magnitude, but one of the stars is farther from earth than the other one, which star would appear brighter in the night sky

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.