If you use warm water it'll take about half hour
Codeine phosphate (the most common salt of codeine) is very _soluble_ in water including cold water.
Codeine is typically soluble in water, alcohol, and chloroform. It is important to follow proper guidelines and precautions when dissolving codeine in a particular fluid to ensure proper dosing and administration.
water
fast
Instant coffee granules dissolve faster in hot water than in cold water.
Most chemical salts dissolve faster in hot water than in cold water.
Much faster in boiling water.
It depends on the kind of the solid
It won't. Put powdered milk in cold water to dissolve.
In order to dissolve chalk in water, vinegar needs to be added. The vinegar has acid in it that eats away at the chalk to dissolve it.
Not all solids will dissolve in water at all. Those that do dissolve do so at different rates, and it's also temperature-dependent.
depends on your definition of hot