Instructions: Below are ethane (&c2h6;) and oxygen (&o2;) molecules. Ethane (a kind of fuel) will react with oxygen to make carbon dioxide and oxygen. Rearrange the atoms in the box by clicking and dragging so that you form carbon dioxide (&co2;) and water (&h2o;). When you are done, click the "Take snapshot" button and answer the questions below.

How many &c2h6; molecules do you start with in the box?	How many &o2; molecules do you start with in the box?	How many &co2; molecules did you make?	How many &h2o; molecules did you make?

How did the numbers in the balanced equation, &equation;, relate to the number of molecules that you made?
Once you think you have the answer, go to the next step in WISE.