Description
of Action |
Action |
1. Write the formulas for the given reactants. Don't forget to write a subscript of two with elements that are diatomic. |
Fe(s) + O2(g)
-->
Remember oxygen is diatomic. |
2. On the products side of the equation, write
the cation with its charge and the anion with its charge. If a multivalent
element is being used, you can use whatever charge you want. |
Fe(s) + O2(g)
--> Fe3+O2- Iron is multivant and can have a 2+ or a 3+ charge. I used the 3+ charge. |
3. Cross the charges between the cation and the anion, remove +
signs, - signs and ones. |
Fe(s) + O2(g)
--> Fe2O3(s) |
4. Balance the equation. |
4Fe(s) + 3O2(g)
--> 2Fe2O3(s) |