You're oxidising agent will be reduced. In the molecule MnO4-, Mn has and oxidation number of +9 and in MnO2 it is +4, therefore its oxidation number has reduced, therefore Mn is reduced, therefore it is the oxidant/oxidising agent.
Answer:
The most mass of an atom is found in its nucleus(proton + neutron) since the mass of the electrons is negligible
to give you an estimate, protons are pretty small and electrons weigh about 1/2000 the mass of a proton
The problem above is simply a conversion problem. We only need a conversion factor to convert the units from amu to kg. From a conversion table, we will see that 1 amu is equal to 1.66x10^-27 kg. We convert as follows:
0.13261 amu ( <span>1.66 × 10^-27 kg / 1 amu ) = 2.20x10^-28 kg </span>
A solution is a homogeneous mixture of two or more substances. a solution doesn't allow light to scatter. the solute cannot be separated mechanically from the solution.