Sugar interferes with ice crystal production, so foods will freeze at a lower temperature. Because the freezing point decreases, the food will need to reach a lower temperature before it can freeze.
Only sugar is soluble in water.
It has more surface area.
The icing sugar has a greater surface area than the lump and so the reaction occurs more easily with the icing sugar powder. This in general applies to many salts and soluble compounds.
Sugar will dissolve faster in hot water than it will in cold water.
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.
Heat it
Sugar dissolves faster than salt in water. Salt has stronger bonds than sugar. That what makes sugar dissolve faster (because it has weaker bonds and structure than salt)
Heat the water.
The hotter the water, The faster it will dissolve.
Brown sugar is soluble in water- and it's solubility increases as the temperature increases (i.e. the hotter the water, the more brown sugar will dissolve!) This is why you can put brown sugar in your tea- while it is hot, it will all mix in, but if you make it with cold water, much less will dissove.
Sugar will generally dissolve faster in a solution that contains water, and Windex, primarily composed of water, may dissolve sugar. However, the presence of other chemicals in Windex could potentially affect the solubility rate. Overall, while sugar can dissolve in Windex, it might not dissolve as efficiently as it would in plain water.
No because sugar is insoluble solid.