How many moles of nh3 can be produced from 21. 0 mol of h2 and excess n2?.

the ratio of the conjugate base to the acid required to attain the desired ph.

ok whats the question if not i cannot you i need question and need a thing to answer

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.