Question

identify the number of atoms on the reactant side of the chemical equation. fe₂o₃ + 3h₂ → 2fe + 3h₂o there are fe (iron) atoms. there are o (oxygen) atoms. there are h (hydrogen) atoms.

Explanation:

Step1: Count Fe atoms

In \(Fe_2O_3\), the subscript of \(Fe\) is \(2\). There is no \(Fe\) in \(3H_2\). So, the number of \(Fe\) atoms is \(2\).

Step2: Count O atoms

In \(Fe_2O_3\), the subscript of \(O\) is \(3\). There is no \(O\) in \(3H_2\). So, the number of \(O\) atoms is \(3\).

Step3: Count H atoms

In \(3H_2\), the coefficient is \(3\) and the subscript of \(H\) is \(2\). Using the formula \(3\times2 = 6\).

Answer:

There are \(2\) Fe (iron) atoms.
There are \(3\) O (oxygen) atoms.
There are \(6\) H (hydrogen) atoms.