How many moles of Nitrogen (N2), are needed to react with 6 moles of Hydrogen
(H2)?
N2 + 3H2 -> 2NH3

2 mol N₂

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic Table

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

[RxN - Balanced]   N₂ + 3H₂ → 2NH₃

[Given]   6 mol H₂

Step 2: Identify Conversions

[RxN] 3 mol H₂ → 1 mol N₂

Step 3: Stoichiometry

Set up:                    Divide:                    

Yes it would be a physical change.

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