Balancing a Reaction Worksheet

 

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  1. Indicate the reactants side, products side and states of matter in the reaction equation below.

    CH4 (g) + O2 (g)    → CO2 (g) + H2O (g)

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  2. What are the 4 primary states of matter?
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  3. Why do we have to balance reactions?

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  4. Before we can utilize a reaction in problem solving you must ________ the equation.  This means we add _________ to the equation we do NOT alter the subscripts in the formulae.

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  5. How do you know when a reaction has been balanced?

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  6. Balance the following equations
    • Eu (s) + HF (g)→ EuF3 (s) + H2 (g)
    • NH3 (g) + O2 (g)→ NO (g) + H2O (g)

 

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