Reactions: Balancing Chemical Equations

The video tutorial explains the law of conservation of mass, stating that mass is neither lost nor gained in a chemical reaction. It illustrates this concept using the combustion of methane, a component of natural gas, which reacts with oxygen to produce carbon dioxide and water. The tutorial demonstrates how to balance the chemical equation for this reaction by adding coefficients to ensure the same number of atoms of each element on both sides of the equation.

How can you balance the chemical equation CH4 + O2 → CO2 + H2O?

What role do coefficients play in a chemical equation?