A __________________________________reaction in one in which the two negative ions in two compounds switch places, forming two new compounds
Question
A __________________________________reaction in one in which the two negative ions in two compounds switch places, forming two new compounds
Solution
The reaction you're referring to is called a "Double Replacement" reaction. Here's how it works:
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Identify the two compounds that are reacting. These compounds are usually in a solution and are often ionic compounds. For example, let's take silver nitrate (AgNO3) and sodium chloride (NaCl).
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Identify the positive (cation) and negative (anion) ions in each compound. In our example, Ag+ and NO3- are the ions in silver nitrate, and Na+ and Cl- are the ions in sodium chloride.
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In a double replacement reaction, the anions and cations switch places. The cation of the first compound pairs with the anion of the second, and vice versa. So, Ag+ pairs with Cl-, and Na+ pairs with NO3-.
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The result of this switch is two new compounds: silver chloride (AgCl) and sodium nitrate (NaNO3).
So, a double replacement reaction is one in which the two negative ions in two compounds switch places, forming two new compounds.
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