Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Students explore the concept that chemical reactions involve the breaking of bonds between atoms in the reactants, and the rearrangement and rebonding of these atoms to make the products. Students ...

IS HELL EXOTHERMIC, OR ENDOTHERMIC?<br><br><br> The following is an actual question given on University of Liverpool<br> chemistry finals. The answer by one student was so "profound" that<br> the ...