I need a lot help with this pls!):
Just write and I will give my answer in a video.

Konoe Ayatsuki Mercury (コノエ＝アヤツキ＝マーキュリー Konoe Ayatsuki Mākyurī), more commonly known as Nine (ナイン Nain) She is a playable character in BlazBlue: Centralfiction known as Nine the Phantom (ナイン＝ザ＝ファントム Nain za Fantomu)

Explanation:

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2