How to Balance Chemical Equations

The video tutorial explains how to balance chemical equations by adjusting coefficients. It covers three examples: the reaction of sodium and oxygen, the combustion of methane, and the reduction of iron from iron oxide. Each example demonstrates counting atoms on both sides of the equation and adjusting coefficients to achieve balance, ensuring the same number of each type of atom on both sides.

In the reduction of iron oxide, what was the first step taken to balance the equation?

What final adjustments were made to ensure all elements were balanced in the last equation discussed?