This is the second of two videos about balancing chemical equations. This video shows the algebraic method - how to balance chemical equations fast using ALGEBRA. That is, you make an algebraic equation and solve for the unknowns - the coefficients in the balanced chemical equation. We also explain *why* it's so important to balance chemical equations - if you don't, you violate the laws of the universe! Our first video demonstrated the inspection, or "trial-and-error" method. Both videos have 5 examples. Try them both, and see which method works best for you.