Source: Jennifer Roushar
Source: Jennifer Roushar; Simulation from http://phet.colorado.edu/en/simulation/balancing-chemical-equations
Source: Jennifer Roushar
http://phet.colorado.edu/en/simulation/balancing-chemical-equations
Go to the website above. Click on Run Now. The click on balancing equations. You can practice balancing equations- either timed or untimed and there are multiple levels you can try. It is a good way to see whether you understand balancing equations or not.