Yes, since the solubility of a solid solute in liquid solvent is decreased when the temperature is reduced, then the amount of of solute beyond the solubility limit must crystallize out of solution
crystals will begin to form
This crystal is not dissolved.
Yes,since the solubility of solid will decreased by the decreasing of the temperature, so some of the potassium nitrates solid can't be dissolved anymore. So we can observe a phenomenon that some potassium nitrate get back to their original state: solid.
no it is false
True
False
Yes, because the solution is not yet saturated -- there is room for more solute to dissolve.
It is left as a low hazard
The solution will become unsaturated as the saturated concentration will increase. Solubility increases with temperature.
A sodium chloride solution is obtained.
They will dissolve until the water is saturated then the remaining crystal will stay intact.
When a saturated solution contains a nucleating point.
Yes, because the solution is not yet saturated -- there is room for more solute to dissolve.
It is left as a low hazard
The solution will become unsaturated as the saturated concentration will increase. Solubility increases with temperature.
It will dissolve
A sodium chloride solution is obtained.
The products are sodium hydroxide and hydrogen.
No.If you add ammonium chloride solution to potassium chloride solution all that happens is a solution with all the ions in it - ammonium ions, potassium ions, chloride ions and hydroxide ions.
Lead iodide (Pb2I) precipitates as a yellow solid, leaving a solution of potassium and nitrate ions.
The solute normally doesn't dissolve and sinks to the bottom of the container. However, some saturated solutions can become super-saturated for a given temperature and pressure, by altering the conditions without allowing solute to precipitate.
They will dissolve until the water is saturated then the remaining crystal will stay intact.
the solids de-reacts with the aqueos substance