Here is a link to the Phet activity
https://phet.colorado.edu/sims/html/reactants-products-and-leftovers/latest/reactants-products-and-leftovers_en.html
Here is the Introduction packet that you should do first.
https://docs.google.com/document/d/1i-5bxGIEU4nYZr4tHQkg9BEgoK3bQgjSjClQwujCtXc/edit
Here is the Chemistry follow up.
https://docs.google.com/document/d/1_uO6v4lsC8BOFnHG2yOqaHuKQSDnV9vHzTZlF5lGBkg/edit
