Sodium is more reactive than lithium, despite both belonging to group 1. explain why

Na has more valence electrons than Li

It means Na has greater size  

which means it has weak forces of Attraction

And it is more easy to remove electron from Sodium than Lithium{has less electron than Sodium}

Hence,

Sodium is More Reactive than Lithium

Sodium has less Electro-negativity  than   Lithium

And Hence there is More Ionizing Energy Required to remove from Lithium than Sodium

n2(g) + 3h2-> 2nh3(g)   this is the balanced equation

note the mole ratio between n2, h2 and nh3.   it is 1 : 3 : 2   this will be important.

moles n2 present = 28.0 g n2 x 1 mole n2/28 g = 1 mole n2 present

moles h2 present = 25.0 g h2 x 1 mole h2/2 g = 12.5 moles h2 present

based on mole ratio, n2 is limiting in this situation because there is more than enough h2 but not enough n2.

moles nh3 that can be produced = 1 mole n2 x 2 moles nh3/mole n2 = 2 moles nh3 can be produced

grams of nh3 that can be produced = 2 moles nh3 x 17 g/mole = 34 grams of nh3 can be produced

note:   the key to this problem is recognizing that n2 is limiting, and therefore limits how much nh3 can be produced.

i believe it is a.) released into

explanation: