PhET Interactive Simulations
University of Colorado Boulder
- Chemical Equations
- Conservation of Mass
How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas!
Sample Learning Goals
- Balance a chemical equation.
- Recognize that the number of atoms of each element is conserved in a chemical reaction.
- Describe the difference between coefficients and subscripts in a chemical equation.
- Translate from symbolic to molecular representations of matter.