Equilibrium constant expression: In the hypothetical balanced equation, aA + bB cC + dD, coefficients are represented by small letters and chemical symbols are represented by capital letters. The equilibrium constant expression for the equation is: Keq The exponents are the same as the coefficients in the balanced equation. ... If a system is in equilibrium and some condition changes, the system will shift to restore equilibrium. ... For LeChatelier's Principle to work, the chemical system MUST be at equilibrium first. ... Two examples of modern definitions of Le-Chatelier...

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Lavoisier also helped to develop a system for naming chemical substances based on their composition. This system is still in use. ... Lavoisier worked out reactions in chemical equations that respect the conservation of mass. ...

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Because of this, the first component of the airbag system is a sensor that can detect many sorts of different collisions from many different angles and immediately trigger the airbag's deployment. ... The reaction for gasoline combustion can be written as follows. 2C8H18+25O2-->16CO2+18H2O+10900 kj For efficient combustion, the two reactants must be mized in a maole ratio that is close to the one shown in the balanced chemical equation. ...

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• Grade Level: High School