Give answer to the following questions:
Two beakers are taken and approximately \(50\ mL\) of water is added to each of them. Salt is added to the water in the first beaker and sugar or barium chloride is added to the water in the second beaker with continuous stirring. When no more solute dissolves in each beaker, the contents are heated to raise the temperature by about five degrees Celsius. After heating, the solute is added again to both beakers and the observations are noted.
1. What is the purpose of stirring while adding solute?
2. When no more solute dissolves in water, the solution is called
3. When the solution becomes saturated at room temperature and is then heated by 5°C, the solution becomes