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: Balance the following equations:(b) P4(s) + O2(g) ⟶ P4O10(s)

Solution: Balance the following equations:(b) P4(s) + O2(g) ⟶ P4O10(s)

Problem

Balance the following equations:

(b) P4(s) + O2(g) ⟶ P4O10(s)


Solution

A reaction is balanced when the elements in the reactant side and product side are equal in number of moles.

To balance the given equation:

P4(s) + O2(g) ⟶ P4O10(s)


  •  Count the number of moles of each element in the reactant side and product side.

      In the unbalanced equation, the reactant side has 4 P and 2 O. In the product side, 

      there are 4 P and 10 O. 


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