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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:balancing-chemical-equations/v/balancing-more-complex-chemical-equation Want to explore more? Check out the full Chemical reactions playlist here: https://youtube.com/playlist?list=PLSQl0a2vh4HCMPYDKDWzckresmNj5geHf&si=5k_qLv5ROTvEOH3R A balanced chemical equation shows the same number of each type of atom on both sides of the arrow. In this example, we balance the combustion reaction of ethane, C₂H₆. Sections: 00:00 - Introduction to ethane combustion reaction 00:31 - Identifying unbalanced elements 01:15 - Strategy: balance complex molecules first 01:42 - Balancing hydrogen atoms 02:06 - Balancing carbon atoms 02:29 - Counting oxygen atoms 03:07 - Using fractional coefficients 03:34 - Converting to whole number coefficients 04:00 - Final balanced equation with whole numbers ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc