Conventions for Writing Chemical Equations – Arrows, Phases, Coefficients and more

When it comes to writing chemical equations it’s easy to confuse all the little letters and numbers. What do they mean? Where do they go?

This video breaks down every letter and number you’ll see in chemical reactions, from coefficients and phases to numbers that represent charges, multiple atoms or polyatomic ions.

(Watch on YouTube: Chemical Equations. Click CC for transcription.)

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This is Video 10 in the Stoichiometry & Reactions Video Series. Click HERE for the entire series.

Ready to test your knowledge? Try the MCAT Reactions and Stoichiometry practice quiz!