00:02
Hi there.
00:03
In this question, we are given this unbalanced chemical equation.
00:07
I have omitted the states of matter because they are not important for balancing.
00:12
When we are balancing an equation, we use coefficients, which are numbers that go in front of each of the substances.
00:28
And we want to add these coefficients in such a way so that we end up with the same number of each type of atom on each side of the equation.
00:44
Okay, so let's go ahead and start balancing this question or this equation.
00:57
So let's start with the aluminum.
00:58
Looking on the reactant side, there's one aluminum.
01:01
On the product side, because of that subscript of two after the aluminum, there are two aluminum.
01:06
So i need a coefficient of two in front of aluminum.
01:11
Next, i'm going to save the hydrogen...