Energy changes in reactions using Gibbs Free Energy equation Low

UN Livestock Long Shadow Chapter 1 - CO2

We'll go step by step through how to balance an oxidation reduction (redox) reaction in acidic solution. Most importantly, both charges and atoms must balance. Here are the steps: first, calculate oxidations numbers for all the elements in the equation. Next, figure out what is being oxidized and what is being reduced. Then, write half reactions for the oxidation and reduction. After that, balance each half reaction: first, for the atoms other than O and H, then for O and H, and finally for charge by adding electrons. After being balanced, the oxidation and reduction half reactions are ready to be added back to together. Make sure that the number of electrons is the same in the oxidation and reduction half reactions. If they are not, multiply one or both of the half reactions to make the number of electrons the same. Then, combine the oxidation and reduction half reaction, canceling out stuff that appears on both sides of the equation. Lastly, do a final check to make sure that everything balances: both atoms and charge.

So I just got back from an amazing trip. I was visiting Rotterdam in the Netherlands, where I was invited to give a speech about science education at an awesome conference hosted by Shell. I talked about how we need to make science education fun, and to make some of my points, I played rock and roll piano up on stage, and I think people really enjoyed it--I certainly did. But one of the coolest parts was that they set up essentially an entire science museum about energy and how we use it. After I gave the talk, I got to hang out at this Energy Lab with some kids who’d been invited to be participants at the conference. We got to play with Van der Graaff generators, and race cars with direct current generators. So I wanna show you some of the stuff we got to mess around with, and explain a little of the science behind these cool demonstrations.

Is a version of the law of conservation of energy, specialized for thermodynamical systems

Mass Balance Equations (MBE) states that the quantity of all species in a solution containing a particular atom must be equal to the amount of that atom delivered to the solution. Dissociation of diprotic acid, H2S, in H2O occurs in a stepwise manner. In this video, acid dissociation beginning with H2S dissociating to HS- and then to S2- will be animated. In addition, subsequent base back dissociations are also shown. MBEs are written for the dissociation of H2S in H2O. Videos are also available at: http://www.chemistry.nus.edu.sg/education/undergrads/CourseResources/course_resources.htm = Video Gallery or the "Animol" app on Apple and Google Play Store.