00:03
All right, so in this question, there's a visual depiction of a reaction, and we want to write a balanced equation for that depiction.
00:18
All right, so we have some of the reactants in this test tube, and that seems like magnesium, right? so that's magnesium.
00:31
And magnesium, so we have magnesium solid in this reaction, but you have two of it.
00:40
So two of magnesium reacts with, combine them here, right? so the other reactants, we have n -o -3, right? and hydrogen in solution.
01:02
So that looks like nitric acid, h.
01:06
N -o -3 in a -kia solution.
01:12
All right.
01:13
But you have 1, 2, 3, 4, 5, 6, 7, 7.
01:16
8.
01:17
8 of that.
01:20
So 8 of that, let's put 8 here.
01:25
And the products, we've seen that some gas is coming out.
01:30
All right.
01:32
Switch is, what, n -o -2.
01:37
So n -2...