Question

use the following balanced equation to answer the questions: 2al + 3s → al₂s₃ how many molecules of aluminum are present?

Explanation:

Step1: Identify coefficient of Al

The coefficient of Al in the balanced equation $2Al + 3S
ightarrow Al_2S_3$ is 2. In a chemical - equation, the coefficient represents the number of moles or the number of molecules (in the context of the ratio) of the substance.
$2$

Answer:

2