When using standard thermodynamic values, the chemical reaction whereby ATP is converted to ADP is found to have a positive value for ΔG. This would imply the reaction REQUIRES energy. However, analyzing the process under physiological conditions shows that ΔG is in fact negative, as expected.
Balancing redox reactions doesn’t have to feel like a guess-and-check process. Once students master oxidation numbers, they can follow a clear “script” to keep every atom, charge, and electron on cue—even in acidic solutions like Fe²⁺/MnO₄⁻ → Fe³⁺/Mn²⁺. This article shares a student-ready, color-coded, animated PPT and a step-by-step routine (LEO/GER, electron equalization, H₂O/H⁺ balance) that turns messy equations into solvable scenes.
Why does the "Whoosh Bottle" experiment behave differently at different temperatures?
This is the second blog post describing a classroom activity relating seawater chemistry to oceanic shipping. Included are questions that challenge students to apply conclusions drawn from observations to making predictions.
Practice problem answer keys that provide correct and incorrect answers increase student metacognition and lead to more thorough learning.
Did you figure out how to create a multi-colored mixture? Check out the solution to Chemical Mystery #19: Multi-colored Mixture!
Can you use your knowledge of chemistry to figure out what is going on in Chemical Mystery #19?
Check out the solution to Chemical Mystery #18: Peek A Boo Blue!
Helping students develop abstract understanding is a universal goal. This article describes an activity that involves students developing and then solving novel quantitative chemistry problems following a MadLibsTM style framework.
The Golden Drain is a case study developed by Sharma and Wolfgang where students work to uncover a company’s lost revenue due to the error of a new employee.
