No, it will all dissolve eventually until no more can be added to the water, which is called saturation where it will start to settle in the bottom of the container after a certain amount of solute is added. But it does dissolve faster in hot water.
The higher the temperature the more the sugar dissolves because as the atoms move around causing the atoms to turn into a liquid it is causing it to dissolve faster.
It doesn't really disappear, it dissociates. Water is a solvent, and causes tons of stuff to separate, including sugar. Table sugar is not a single molecule (ie. glucose), but instead is a combination of carbon, hydrogen and oxygen (C12H22O11), and simply put, those pieces come apart in water giving the appearance of disappearing. (But they are actually only changing forms.)
I assume that you mean 'dissolves in water'. The answer is yes, very much so. The higher the temperature of the water, the quicker the sugar dissolves. The reason for this is very simple. As the temperature increases, water molecules move more quickly as they have more energy. They are therefore more likely to collide with and 'attack' the sugar crystals, causing sugar molecules to separate from each crystal and disperse throughout the water forming a sugar solution.
Measure the mass of the hot water, then add sugar. Dissolve the sugar in the water, then weigh it again. A much faster way to see if there is in fact sugar in hot water is tasted it (if it is not too hot).
Technically, they do not melt ice -- it requires heat to do that. But the addition of any solute (dissolved material) to water will lower its freezing point. So adding salt or sugar prevents melting ice from refreezing, or at least not until it gets much colder. The solute has the effect of blocking molecules attempting to form lattices in the water (ice), so it requires a lower temperature before the same number of water molecules can form crystals.
The amount of dissolved oxygen decreases when water temperature increases. Warm water is unable to dissolve as much oxygen gas.
That depends on how much sugar is dissolved. It would have to be determined experimentally.
When sugar is in water only so much can be dissolved when the maximum amount of sugar is dissolved the water become saturated. When the sugar is placed in the water the water immediately surrounding the sugar dissolves some of it and becomes saturated. Stirring brings unsaturated water into contact with the sugar which can then dissolve more of the sugar.
suger suder suger
It does not matter what the material dissolved in water. The only thing that matters is how much is dissolved. So neither.
That would depend on how much salt or sugar you have dissolved in the water. As you have not told us that we can not give you a precise answer.
Sugar and salt can dissolve in water, but if you put too much in, the salt or sugar will start collecting at the bottom.
The sugar will dissolve in water because sugar is polar and so is water with hydrogen bonds. When attraction happens, the water molecules will separate the sugar molecules and the sugar will be dissolved.
The mass of sugar is 100 g.
Your question does not state two variables that are needed - what type of powder? and what temperature of water? . For example 550 mg of sugar will dissolve in x amount of water at 50 degrees celcius temperature, but that same amount of sugar will not dissolve in x amount of water at 20 degrees celcius. The hotter the water, the more sugar can be dissolved. While with table salt, making the water hotter will not affect how much can be dissolved (until the water becomes saturated and additional salt will just fall to the bottom and remain there).
It can be. A saturated solution is one that is at the limit of how much of a solute it can hold. So whether a solution of sugar in water is saturated depends on the temperature and how much sugar is dissolved in a given amount of water.
No. The water is simply evaporated as normal and the salt or sugar (or pretty much any substance that can be mized with water) is left behind.
Because salt water already has NaCl(salt) dissolved into it. Water molecules can only break down so much, and so fast to combine with other molecules. When you dissolve sugar in tap water, there are not many different substances dissolved into it yet, so it's easier for the sugar cube to dissolve.