Showing How to Balance Chemical Equations with Images

 

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I'm trying to find a way to have students publish a book explaining how to balance their equations.

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p. 1

Cover of book made with BookWright: Example for student version of balancing an equation: In this example, I will show you how to balance the equation: Zn(OH)2 + H3PO4  Zn3(PO4)2 + H2O First I am going to show the equation with images. You are to do this, too.

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First we count the number and type of atoms on each side. Polyatomic ions like PO4 and OH show up on both sides so we can treat them as a unit. Now we pick an atom or a polyatomic ion to start guessing how many we’ll need to add to one of the sides. As you become more experienced with balancing

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p. 3

equations, you will pick up on what makes sense to start with and what to leave until the end.

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We are balanced!

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