A soluble substance A is dissolved in a beaker of water. This caused the colour of the water to change. The solution was then separated y evaporation to obtain back substance A. Identify the type of change and give a possible reason for your answer.
Answers
Answer:
A saturated solution at a given temperature is one that will not dissolve any more solute when the solution is in contact with solid solute. The solubility of a substance at a given temperature is the amount of it required to produce a saturated solution in a given amount of the solvent at that temperature. Whenever a substance is described as soluble or insoluble in a solvent it is taken for granted, unless otherwise stated, that the temperature is about room temperature. If the solid disappears, the substance is obviously soluble. When a bottle of soft drink is opened, bubbles of the dissolved gas, carbon dioxide, are seen leaving the liquid. If the soft drink is warmed, more bubbles of the gas leave the liquid because in general, gases are less soluble in hot liquids than in cold liquids.
Explanation: