00:01
Hello students, in this question we need to check which of the following equations will be balanced.
00:07
So first we have mg plus 2 hcl reacting to give mg cl2 and h2 gas.
00:27
So in this equation we have one magnesium atom on both sides, 2 cl on both the sides and 2 cl hydrogen on both sides.
00:40
So it means that this equation is balanced.
00:48
Let's move on to the next one.
00:52
Next one we have 3 al reacts with 3 br2 br2 to give al.
01:09
As we can see aluminum on left has 3.
01:15
Whereas on the right side we have 2.
01:20
Similarly for vr, on the left we have 3 multiplied by 2 equal to 6 and on the right side we only have 3.
01:29
It means that this equation is not balanced.
01:40
Let's check 3.
01:43
We have 2hgo decomposes to give 2hg plus o2.
01:58
Now as you can see the hg on the left is also 2 and right also 2 and we have 2 oxygen on the left and 2 oxygen on the right...