Ch.4 - Chemical Quantities & Aqueous ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Complete and balance the equation for this reaction in acidic solution.ZnS + NO3- → Zn2+ + S + NO i) Which element got oxidized?ii) Which element got reduced?iii) Which species was the oxidizing agent

Solution: Complete and balance the equation for this reaction in acidic solution.ZnS + NO3- → Zn2+ + S + NO i) Which element got oxidized?ii) Which element got reduced?iii) Which species was the oxidizing agent

Problem

Complete and balance the equation for this reaction in acidic solution.

ZnS + NO3- → Zn2+ + S + NO 

i) Which element got oxidized?

ii) Which element got reduced?

iii) Which species was the oxidizing agent?

iv) Which species was the reducing agent?

Solution

Balancing in acidic solution:

• no need to balance H+ that are left (leave as it is in the reaction)
• (when in basic solution: balance H+ by adding OH- to both sides)

Balancing the reaction:

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