Write a balanced net ionic equation for each of the...

Write a balanced net ionic equation for each of the following solution reactions. Refer to Table 5 for electrolyte information (a) $\mathrm{AgNO}_{3}(a q)+\mathrm{KI}(a q) \longrightarrow \mathrm{AgI}(s)+\mathrm{KNO}_{3}(a q)$ (b) $\mathrm{BaCl}_{2}(a q)+\mathrm{K}_{2} \mathrm{CrO}_{4}(a q) \longrightarrow \mathrm{BaCrO}_{4}(\mathrm{~s})+\mathrm{KCl}(a q)$

Write a balanced net ionic equation for each of the following solution reactions. Refer to Table 5 for electrolyte information
(a) $\mathrm{AgNO}_{3}(a q)+\mathrm{KI}(a q) \longrightarrow \mathrm{AgI}(s)+\mathrm{KNO}_{3}(a q)$
(b) $\mathrm{BaCl}_{2}(a q)+\mathrm{K}_{2} \mathrm{CrO}_{4}(a q) \longrightarrow \mathrm{BaCrO}_{4}(\mathrm{~s})+\mathrm{KCl}(a q)$

Key Concepts

Balancing Chemical Equations

Balancing chemical equations ensures that the law of conservation of mass is upheld during a reaction by having the same number of each type of atom on both sides of the equation. In net ionic equations, it is important to balance both the atoms and the charges to accurately represent the chemical change taking place.

Solubility Rules

Solubility rules are guidelines that help predict whether an ionic compound is soluble in water or will form a precipitate when mixed with another solution. They are essential for determining which ions remain in solution and which form an insoluble compound during a precipitation reaction.

Net Ionic Equations

Net ionic equations show only the species that participate in the actual chemical change of a reaction, omitting the spectator ions that remain unchanged. They provide a simplified view by focusing solely on the formation of a precipitate, gas, or weak electrolyte, making it easier to identify the key chemistry involved.

Spectator Ions

Spectator ions are ions that remain in solution during a chemical reaction and do not participate in the formation of the precipitate or any new product. Identifying and removing them from the complete ionic equation streamlines the process of writing the net ionic equation by showing only the active reacting species.

Precipitation Reactions

Precipitation reactions are reactions in which two aqueous solutions are combined to form an insoluble solid called a precipitate, which separates from the solution. Recognizing such reactions relies on the solubility rules that predict whether a given ionic compound will dissolve in water or form a precipitate.

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