Pls me how many liters of nh3 are needed to react completely with 30.0 l of no (at stp)? 4nh3 (g)+ 6no(g) 5n2(g)+ 6h2o(g) a. 5.0 l c. 7.5 l b. 20.0 l d. 120.0 l

Gymnast always perform on padded mats. how does the mats protect the gymnast

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.