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Ch.4 - Reactions in Aqueous Solution
Chapter 4, Problem 39b

Complete and balance the following molecular equations, and then write the net ionic equation for each: (b) Cu1OH221s2 + HClO41aq2¡ Write the net ionic equation for it.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Balancing Chemical Equations

Balancing chemical equations involves ensuring that the number of atoms for each element is the same on both sides of the equation. This is crucial for obeying the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. Techniques such as adjusting coefficients and using the smallest whole numbers help achieve balance.
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Molecular vs. Ionic Equations

Molecular equations represent the complete chemical formulas of reactants and products, while ionic equations show the ions present in solution. The net ionic equation is derived from the ionic equation by removing spectator ions—those that do not participate in the reaction—thus highlighting the actual chemical change occurring.
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Net Ionic Equations

A net ionic equation focuses on the species that undergo a change during the reaction, omitting the spectator ions. This equation provides a clearer picture of the actual chemical process, allowing for a better understanding of the reaction dynamics. It is particularly useful in reactions involving soluble ionic compounds in aqueous solutions.
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