Ch.3 - Chemical 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: Consider the following reaction: 2N2H4 (g) + N2O4 (g) → 3N2(g) + 4H2O(g) Consider the following representation of an initial mixture of N2H4 and N2O4 : Which of the following best represents the react

Solution: Consider the following reaction: 2N2H4 (g) + N2O4 (g) → 3N2(g) + 4H2O(g) Consider the following representation of an initial mixture of N2H4 and N2O4 : Which of the following best represents the react

Problem

Consider the following reaction: 2N2H4 (g) + N2O4 (g) → 3N2(g) + 4H2O(g) Consider the following representation of an initial mixture of N2H4 and N2O4 : A space-filling molecular diagram which is a collection of six molecules composed of two blue spheres combined surrounded by four smaller white spheres (two on each blue sphere), and four molecules composed of two blue spheres combined surrounded by four red spheres (two on each blue sphere).

Which of the following best represents the reaction mixture after the reactants have reacted as completely as possible? Three space-filling molecular diagrams labeled a, b, and c. Diagram a is a collection of one molecule composed of two blue spheres combined surrounded by four red spheres (two on each blue sphere), nine molecules composed of two blue spheres combined, and eleven molecules composed of a central red sphere surrounded by two smaller white spheres. Diagram b is a collection of two molecules composed of two blue spheres combined surrounded by four red spheres (two on each blue sphere), twelve molecules composed of two blue spheres combined, and sixteen molecules composed of a central red sphere surrounded by two smaller white spheres. Diagram c is a collection of nine molecules composed of two blue spheres combined, and twelve molecules composed of a central red sphere surrounded by two smaller white spheres.

Solution

Balanced reaciton: 

2 N2H4 (g) + N2O4 (g) → 3N2(g) + 4H2O(g)

To have a proper visualization, we must assign the colors to specific atoms so that we know what we are looking at.

Blue = N (Since it is in the middle of the molecules)
White = H (slightly smaller)
Red = O 

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