1. write a balanced equation for the reaction between iron and oxygen.
! will medal! i am so bad with equations and i'm not sure what the answer for this is. you!

4Fe(s) + 3O2(g) → 2Fe2O3(s)

3Fe(s) + 2O2(g) → Fe3O4(s)

Explanation:

Iron has 2 oxidation state of +2 and +3. The oxidation number of + 3 can react with oxygen to form a compound known as ferric oxide. The reaction is as follows

Fe(s) + O2(g) → Fe2O3(s)

The equation is not balanced so we need to balance it.

4Fe(s) + 3O2(g) → 2Fe2O3(s)

The atom on both side is balanced .

The combination of Iron (ii) and (iii) can react with oxygen as follows

Fe(s) + O2(g) → Fe3O4(s)

Balancing the equation

3Fe(s) + 2O2(g) → Fe3O4(s)

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.