What coefficient must go in front of Cs to balance the following equation: Cs + N2 > CS3N a. 5 b. 3 C. 4 d. 6

Answer 1

First let's look at the product: Cs₃N.

The subscript 3 tells us is there are three Cs atoms for each N in Cs₃N.

On the left side of the equilibrium equation, we see a lone Cs atom and a molecule of N₂. The subscript 2 means there are two nitrogen atoms.

Since there are two nitrogens available, that means we can make two Cs3N molecules. We know that there are three Cs atoms for each N, so we will need 6 Cs atoms to react with the two N atoms we have.

This makes the equilibrium equation:

6 Cs + N₂ ==> 2 Cs₃N.