00:02
For each of these single replacement reactions, we first need to consult the activity series.
00:09
So on the activity series, we need the single element to be higher up than that same type of element that's in the compound in order for the reaction to happen.
00:20
So for our first reaction, we have to compare the magnesium, which is the single element, and make sure that is above silver ag on the activity series.
00:28
So when we compare those, we find that mg is indeed a bit.
00:33
Silver.
00:34
We're comparing metal to metal.
00:36
So this reaction will happen.
00:39
While we're looking at that activity series, let's also compare nickel to mercury.
00:45
So nickel needs to be higher than mercury in order for this reaction to happen.
00:50
And when you check out your activity series, you'll see that nickel is indeed higher up.
00:54
So both of these reactions will happen.
00:56
So we'll go ahead and write our products.
00:59
So what we have to consider when we do a single replacement reaction is that the charges of the atoms involved and polyatomic ions involved will matter.
01:09
So the magnesium will go with the nitrate because it's replacing the silver.
01:13
Magnesium has a charge of plus two nitrates in negative one.
01:18
So we get mgno32 magnesium nitrate...