Predict the products and write a balanced molecular equation...

Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write "NO REACTION." a. $\mathrm{H}_{2} \mathrm{SO}_{4}(a q)+\mathrm{HNO}_{3}(a q) \longrightarrow$ b. $\mathrm{Cr}\left(\mathrm{NO}_{3}\right)_{3}(a q)+\mathrm{LiOH}(a q) \longrightarrow$ c. aqueous strontium sulfide and aqueous copper(II) sulfate

Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write "NO REACTION."
a. $\mathrm{H}_{2} \mathrm{SO}_{4}(a q)+\mathrm{HNO}_{3}(a q) \longrightarrow$
b. $\mathrm{Cr}\left(\mathrm{NO}_{3}\right)_{3}(a q)+\mathrm{LiOH}(a q) \longrightarrow$
c. aqueous strontium sulfide and aqueous copper(II) sulfate

Key Concepts

Double Displacement Reactions

Double displacement reactions (also known as metathesis reactions) involve the exchange of ions between two reacting ionic compounds in an aqueous solution. In these reactions, the cations pair with different anions to form new compounds, which may result in the formation of a precipitate, a gas, or a weak or non-electrolyte.

Precipitation Reactions

A precipitation reaction is a type of double displacement reaction where one of the products formed is an insoluble solid. The insoluble product, known as the precipitate, separates from the aqueous solution, making it possible to predict the reaction outcome using solubility rules.

Solubility Rules

Solubility rules are guidelines that help determine whether an ionic compound will dissolve in water. These rules allow chemists to predict if a compound formed in a reaction will remain in solution or precipitate as a solid, facilitating the prediction of reaction products in aqueous systems.

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 process is crucial to obeying the law of conservation of mass and to accurately represent the chemical changes occurring during the reaction.

Reaction Prediction in Aqueous Solutions

Predicting reactions in aqueous solutions requires analyzing the ions present in the reactants and applying solubility rules to anticipate whether any combination of ions will result in the formation of an insoluble product or prompt other chemical changes. It also involves recognizing when no reaction occurs, such as when mixing compounds that remain fully soluble.

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