Suppose you combine 1583L of nitrogen gas and 4495L of hydrogen gas at STP, heat the mixture to run the reaction then separate the ammonia from the reaction mixture. What volume of reactant measured at STP is left over in liters? Assume the reaction goes to completion. N2(g) + 3H2 (g) —> 2NH3 (g)

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.