Click the Game tab at the bottom of the simulation and select Level 1. (There is no seesaw balance for this part of the activity.) Balance the first equation, and click Check to see if you got it right. If you can't balance it in the first try, you can try again. Work through the five equations for Level 1. Click Continue to go on to Level 2, and later Level 3. Each level is more difficult than the one before. Keep trying until all the equations are balanced. In one or two sentences, describe how you did in the balancing game. In a few more sentences, explain one strategy you learned for balancing more complex equations.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .