# What is the equation for aluminum bromide plus chlorine gas yields aluminum chloride and bromine gas?

Mar 23, 2018

$2 A l B {r}_{3} + 3 C {l}_{2} \to 2 A l C {l}_{3} + 3 B {r}_{2}$

#### Explanation:

Translate names to symbols
$A l B {r}_{3} + C {l}_{2} \to A l C {l}_{3} + B {r}_{2}$
Balance Cl and Br by adding atoms
$A l B {r}_{3} + \frac{3}{2} C {l}_{2} \to A l C {l}_{3} + \frac{3}{2} B {r}_{2}$
Multiply by 2 to get to the nearest whole number
$2 A l B {r}_{3} + 3 C {l}_{2} \to 2 A l C {l}_{3} + 3 B {r}_{2}$