Can anyone explain a and b? i know that, for c, electrons get shared so that the compound becomes neutral (example a +2 atom will bond with a -2 atom, and a -4 atom will bond with two +2 atoms,

iron is a transition metal and, as such, can form two types of "oxide" compounds, feo and fe₂o₃.

(a) what's different about the iron cations in each compound?

(b) how does that difference affect the final compound formulas?

(c) explain what happens to the electrons when iron and oxygen atoms combine to form either of these compounds.

In FeO iron atom exist as Fe+ cation but in Fe2O3 iron atom exist as Fe3+ cation.

Explanation:

Feo=Fe+  +  O-

Fe2O3 =2Fe3+  +  3O2-

The difference in the charge of iron cation deeply affect the compound formulas because in FeO the  Fe cation has 1 unit positive charge where in Fe2O3 the  Fe cation has 3 units positive charge.

   That"s why these two chemical compounds made up of similar atoms differ in their chemical formulas.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

so what is the problem with your lab report and whats the subject of the lab report? i will you