When you added different concentrations of KMnO4 to wells in a petri plate, they had different larger or smaller rings of diffusion. Why were some larger or smaller

Faster or slower diffusion depending upon the concentration

Explanation:

Given: When you added different concentrations of to wells in a Petri plate, they had different larger or smaller rings of diffusion

Solution:

If we add more concentration of , there will be more gradient which results in faster diffusion.

If we add less concentration of , there will be less gradient which results in slower diffusion.

a polar bond is formed when electrons are shared unevenly between atoms