Balance the following equations by adding the stoichiometric ratios and inserting their physical state (s, l, g or aq). Do not leave the boxes blank or it will mark you incorrect. If the stoichiometry is 1 please insert 1 in the box(es) below. Iron reacts with oxygen to form iron(III) oxide (rust). Fe( ) + O2( ) → Fe2O3( )
Question
Balance the following equations by adding the stoichiometric ratios and inserting their physical state (s, l, g or aq). Do not leave the boxes blank or it will mark you incorrect. If the stoichiometry is 1 please insert 1 in the box(es) below. Iron reacts with oxygen to form iron(III) oxide (rust). Fe( ) + O2( ) → Fe2O3( )
Solution
The balanced chemical equation for the reaction of iron with oxygen to form iron(III) oxide is:
4Fe(s) + 3O2(g) → 2Fe2O3(s)
Here's the step-by-step process:
-
Write the unbalanced equation: Fe(s) + O2(g) → Fe2O3(s)
-
Balance the iron atoms first. There are 2 iron atoms in Fe2O3 on the right side of the equation, so we put a coefficient of 2 in front of Fe on the left side: 2Fe(s) + O2(g) → Fe2O3(s)
-
Now balance the oxygen atoms. There are 3 oxygen atoms in Fe2O3 on the right side, and 2 oxygen atoms in O2 on the left side. To balance this, we put a coefficient of 3/2 in front of O2: 2Fe(s) + 3/2O2(g) → Fe2O3(s)
-
However, we cannot have a fraction as a coefficient in a balanced chemical equation. To get rid of the fraction, we multiply all coefficients by 2: 4Fe(s) + 3O2(g) → 2Fe2O3(s)
So, the stoichiometric ratios are 4:3:2 for Fe, O2, and Fe2O3 respectively.
Similar Questions
Balance the following equations by adding the stoichiometric ratios and inserting their physical state (s, l, g or aq). Do not leave the boxes blank or it will mark you incorrect. If the stoichiometry is 1 please insert 1 in the box(es) below. Carbon is burnt in a limited supply of oxygen to produce carbon monoxide. C( ) + O2( ) → CO( )
Balance the following equations by adding the stoichiometric ratios and inserting their physical state (s, l, g or aq). Do not leave the boxes blank or it will mark you incorrect. If the stoichiometry is 1 please insert 1 in the box(es) below. Nitrogen and hydrogen react to produce ammonia.
The chemical equation below is not balanced. What is the coefficient of iron (Fe) when the equation is balanced?Fe(s) + O2(g) → Fe2O3(s)
When the following equation is balanced, the stoichiometric coefficient of H2S is ________.FeCl3(aq) + H2S(g) → Fe2S3(s) + HCl(aq)
Which number completes the balanced chemical equation showing the process of rusting? 4Fe + 3O2 ____Fe2O3 A. 1 B. 2 C. 4 D. 12
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.