CS2 reacts with O2 to produce CO2 and SO2. CS2 + O2

CS2 reacts with O2 to produce CO2 and SO2. CS2 + O2 --> CO2 + SO2 (Not balanced) Identify the limiting reactant represented by the following submicroscopic representation of the initial state (before reaction) of the reaction mixture: CS2 CO2 SO2 O2

Transcript

00:02 Hey there, in this question we are given an unbalanced chemical equation.

00:06 So the first thing we need to do is balance that.

00:13 Unbalanced equations are simply offensive.

00:16 We need to make sure when we write an equation it's balanced.

00:19 And in fact in this question we need to use that balanced equation.

00:23 So that makes it all the more important.

00:26 All right so to balance we need to add coefficients.

00:29 We see there's one carbon on the left and one carbon on the right.

00:32 So we don't need to add any coefficients to make those equal.

00:35 Next let's look at the sulfur.

00:36 There are two on the left but only one on the right.

00:38 So i need a coefficient of two in front of so2 to give me two sulfur on each side.

00:44 Now as we look on the right side we see that we have two oxygen plus we have two times two for four more for a total of six oxygen on the right.

00:53 That means we need to add a three in front of o2 on the left to give us a balanced chemical equation.

01:01 This is now balanced with one carbon on each side, two sulfur on each side, and six oxygen.

01:07 Okay so this balanced equation tells us the ratio in which the reactants react and the products are formed.

01:14 So if we were to interpret this it tells us that one molecule of cs2 reacts for every three molecules of o2.

01:24 And i got those numbers simply from the coefficients.

01:27 Since there's no coefficient in front of cs2 we know it's a one.

01:31 And we see that three there in front of the o2.

01:34 This then is going to produce one molecule of co2...

Question

CS2 reacts with O2 to produce CO2 and SO2. CS2 + O2 --> CO2 + SO2 (Not balanced) Identify the limiting reactant represented by the following submicroscopic representation of the initial state (before reaction) of the reaction mixture: CS2 CO2 SO2 O2

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