The oxidation number for Mn in Mn2O7 is +7. The oxidation
number of manganese (Mn) in potassium permanganate (KMnO4) is +5.
The error that would make the calculated density of the solid have if the material had a hollow center is that the calculated density would be low, because the volume would be incorrectly measured high.
<h3>What is density?</h3>
The measure of how densely a material is packed together is called density. As the mass per unit volume, it has that definition. Density Formula: = m/V, where is the density, m is the object's mass, and V is its volume. Density Symbol: D.
If a substance had a hollow center, its volume would be high and its density would be low.
Therefore, the error that would make the calculated density of the solid have if the material had a hollow center is that the calculated density would be low, because the volume would be incorrectly measured high.
Learn more about density on:
brainly.com/question/1354972
#SPJ1
The lower the frequncy the longer the wavelength the longer the wavelength whoch would probably give you more energy.
if im incorrect im truly sorry
I'm going to go with Physical.
