If let sit long enough yes. The process would be sped up by motion though.
No, talcum powder will not dissolve in cold water. Talcum powder is insoluble in water, meaning it will not mix or dissolve in water at any temperature.
Instant coffee granules dissolve faster in hot water than in cold water.
Most chemical salts dissolve faster in hot water than in cold water.
Cold water
Jelly will not dissolve in cold water. Instead, it will remain mostly intact because the gelatin in jelly requires heat to break down and dissolve. Cold water does not provide the necessary temperature to effectively dissolve the gelatin, so the jelly will maintain its structure.
Yes. The temperature of the water helps dissolve the salt.
Sand will not dissolve in water.
No, butter will not dissolve in chloroform because chloroform is not a good solvent for non-polar compounds like fats and oils. Butter is mostly composed of fat and water, neither of which are soluble in chloroform.
Yes, sugar can dissolve in a clear glass of cold water without stirring, but it will dissolve more slowly compared to if the water were warm. The process can be accelerated by stirring or heating the 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.
Yes. The temperature of the water helps dissolve the salt.
Sugar will dissolve faster in hot water than it will in cold water.