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Ch.4 - Chemical Quantities & Aqueous Reactions
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 4th EditionCh.4 - Chemical Quantities & Aqueous Reactions문제 112b
4장, 문제 112b

Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write 'NO REACTION.' b. Cr(NO3)3(aq) + LiOH(aq) →

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Identify the reactants: Chromium(III) nitrate, Cr(NO_3)_3, and lithium hydroxide, LiOH.
Determine the possible products by considering a double displacement reaction: Cr(OH)_3 and LiNO_3.
Write the unbalanced molecular equation: Cr(NO_3)_3(aq) + LiOH(aq) → Cr(OH)_3(s) + LiNO_3(aq).
Balance the equation by adjusting coefficients to ensure the same number of each type of atom on both sides: Cr(NO_3)_3(aq) + 3LiOH(aq) → Cr(OH)_3(s) + 3LiNO_3(aq).
Check the solubility of the products: Cr(OH)_3 is insoluble and forms a precipitate, confirming the reaction occurs.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Double Displacement Reaction

A double displacement reaction, also known as a metathesis reaction, occurs when two compounds exchange ions to form two new compounds. In this type of reaction, the cations and anions of the reactants switch partners, often resulting in the formation of a precipitate, gas, or water. Understanding this concept is crucial for predicting the products of the given reaction.
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Single Displacement Reactions

Solubility Rules

Solubility rules are guidelines that help predict whether a compound will dissolve in water or form a precipitate. These rules indicate which ionic compounds are soluble in water and which are not, based on the ions present. Applying these rules is essential for determining the outcome of the reaction between Cr(NO3)3 and LiOH, as it influences whether a reaction occurs and what products are formed.
추천 영상:
가이드 코스
00:28
Solubility Rules

Balancing Chemical Equations

Balancing chemical equations is the process of ensuring that the number of atoms for each element is the same on both sides of the equation. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. A balanced equation accurately represents the stoichiometry of the reaction, which is necessary for understanding the quantities of reactants and products involved.
추천 영상:
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01:32
Balancing Chemical Equations
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