# Chapter 4 - Sections 4.1-4.9 - Exercises - Problems by Topic: 37a

Na is the limiting reactant.

#### Work Step by Step

Determine the limiting reactant. Choose one of the reactants and determine how much we need compared to how much is available. We choose to compare Na. $2$ $mol$ $Na(avaliable)$ $2 mol Br_{2}$$\times\frac{2 mol Na}{1 mol Br_{2}}$ $=4$ $mol$ $Na (needed)$

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