The correct answer is A because particles in solids are packed more compactly than those in liquids, gases, and plasmas, due to the decreased kinetic engergy
Hope this helps
<span>In melting only one substance is involved and the liquid and solid are the same material. Heat is needed for melting to occur. Dissolving involves two materials; the resulting solution is a mixture of both. The dissolved substance is still present in the solution even though it can't be seen.</span>
Runoff from snowmelt is a major component of the global movement of water, possibly even if you live where it never snows.
Propanal will form silver mirror upon heating with Tollen's reagent while propanoic acid will not respond.
