Predicting the direction of chemical reactions using the reaction quotient

Introduction to reaction quotient Qc | Chemical equilibrium | Chemistry | Khan Academy · 7:36 · Video: Khan Academy · Watch at the source

In short: Understanding chemical equilibrium requires knowing where a reaction is headed. This video introduces the reaction quotient, Qc, a tool used to predict how concentrations will shift as matter reacts.

The video explores the reaction quotient (Qc) as a method for determining the behavior of chemical systems. By analyzing the current concentrations of reactants and products, learners can use Qc to forecast whether a reaction will proceed forward, backward, or remain at equilibrium.

Designed for first-year high school or college students, the lesson assumes a foundational understanding of algebra. It contextualizes these principles within the broader study of chemistry—the science of matter, its properties, and its reactivity.

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