This page presents a "scenario" where the initial condition of a simple mixture
is described and then a change is presented. You are then asked to determine
some quantity related to the final state. In doing these problems, it is critical that you
read the problem very carefully. To generate a problem, just press "New Problem".
When you have determined the answer, enter it in the box and press "Check Answer." It is
recommended that you redo any problems you get incorrect.
- If you miss a problem three times, pressing "Show Answer" will cause the correct answer to appear.