Write a balanced chemical equation for each of the following...

Name: Problem 72, Chapter 8: Introductory Chemistry: Concepts and Critical Thinking
Uploaded: 2021-06-15T09:09:01-08:00
Duration: 2 min 37 s
Channel: Raghvendra Singh
Description: Write a balanced chemical equation for each of the following double-replacement reactions: (a) Aqueous solutions of chromium(III) iodide and sodium hydroxide react to give a chromium(III) hydroxide precipitate and aqueous sodium iodide. (b) Aqueous solutions of nickel(II) sulfate and mercury(I) nitrate react to give a mercury(I) sulfate precipitate and aqueous nickel(II) nitrate.

Write a balanced chemical equation for each of the following double-replacement reactions: (a) Aqueous solutions of chromium(III) iodide and sodium hydroxide react to give a chromium(III) hydroxide precipitate and aqueous sodium iodide. (b) Aqueous solutions of nickel(II) sulfate and mercury(I) nitrate react to give a mercury(I) sulfate precipitate and aqueous nickel(II) nitrate.

Write a balanced chemical equation for each of the following double-replacement reactions:
(a) Aqueous solutions of chromium(III) iodide and sodium hydroxide react to give a chromium(III) hydroxide precipitate and aqueous sodium iodide.
(b) Aqueous solutions of nickel(II) sulfate and mercury(I) nitrate react to give a mercury(I) sulfate precipitate and aqueous nickel(II) nitrate.

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Key Concepts

Double Replacement Reactions

Double replacement reactions occur when parts of two ionic compounds are exchanged to form two new compounds. This type of reaction typically happens in aqueous solutions, where ions are free to move, and often results in the formation of a precipitate, gas, or weak electrolyte due to the specific properties of the products.

Chemical Equation Balancing

Balancing chemical equations involves adjusting the coefficients of reactants and products to ensure that the number of atoms for each element is equal on both sides of the equation. This practice enforces the law of conservation of mass and is essential for accurately representing a chemical reaction in line with stoichiometric principles.

Precipitation Reactions

Precipitation reactions take place when the mixing of two soluble salts in aqueous solution leads to the formation of an insoluble product, known as a precipitate. Understanding solubility rules is critical in predicting which combinations of ions will produce a precipitate, providing insight into the direction and completeness of the reaction.

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