I believe that's is answer C because your ask about and increasment on the velocity in this observation
<span>H2C2O4(aq) + 2OH- --> C2O4^2- + 2H2O(l)</span>
A solution must have both a solute and a solvent, and they must exist in solution together. the solute must be dissolved in the solvent; salt does not dissolve in a sugar bowl, nor does oil dissolve in water; it is a non polar molecule. we know that sugar (the solute) when added to water(solvent) will dissolve, creating a solution.
therefore, B
Radio waves has the longest wavelength
