Free Energy Formula
For this chemical reaction worksheet, students use the free energy formula to determine if reactions are spontaneous or not. This worksheet has 5 problems to solve.
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Physics Skill and Practice Worksheets
Stop wasting energy searching for physics resources, this comprehensive collection of worksheets has you covered. Starting with introductions to the scientific method, dimensional analysis, and graphing data, these skills practice...
9th - Higher Ed Math CCSS: Adaptable
2001 U.S. National Chemistry Olympiad National Exam Part II
Only eight problems are on this competitive national chemistry exam. It required the balancing of chemical equations, solving stoichiometry questions, and more. This is part two of three of the national exam. Also available is a local...
9th - 12th Science
2009 U. S. National Chemistry Olympiad - Local Section Exam
Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...
9th - 12th Science
Using Conservation of Energy to Determine Average Impact Force
Explore the center of gravity with your science class as they create a deadfall trap with common materials. They research the concepts of energy conservation and gravitational force before dividing into small groups to create a model of...
7th - 12th Science
Potential and Kinetic Energy
Here's a resource ideal for independent learners who need extra reinforcement or would like to work ahead. These textbook chapters and practice problems cover many basic physics concepts, starting with potential and kinetic energy and...
9th - 12th Science CCSS: Adaptable
More Rigorous Gibbs Free Energy/Spontaneity Relationship
In this chemistry video, Sal compares two systems in reaction; one that is "reversible," and one that is "spontaneous." Sal constructs a PV diagram, and clearly demonstrates what an irreversible process and a reversible process really...
14 mins 7th - 10th Science
Gibbs Free Energy and Spontaneity
The series of videos on enthalpy change continues with this look at the Gibbs Free Energy System and Spontaneity. Most students have heard the term, "spontaneous reaction," and Sal explains exactly what a spontaneous reaction is and how...
18 mins 7th - 10th Science