Flashcards
Unit 4.3 Separating Soluble Substances
Cards in this deck (10)
- 11.Define the term chromatography.Chromatography is the process of separating a mixture by making it move over or through another.
- 22.What is evaporation?The addition of heat causing a liquid
to change its state into a gas.
- 33. What is crystallization?A formation of crystals as a dissolved substance solidifies.
- 44. What is distillation?Evaporation and condensation that separates solids from liquids, or liquids from liquids letting both materials recover.
- 55. How can evaporation be used in restaurants?When a chef makes a sauce, the water in the sauce evaporates making the
sauce thicker.
- 66. What is the difference between smaller and larger crystals?Smaller crystals form when the solvent evaporates quickly, and larger crystals form when the solvent evaporates slowly.
- 77. How can evaporation and crystallization be used in an industry?Evaporation and crystallization can be used in an industry for removing soluble substances from solutions to purify them.
- 88. How re crystals formed?The solute left behind by evaporation forms crystals.
- 99. How do salt producers make salt?They use the heat of the sun to evaporate water from pools of salt water which leave behind crystals to be collected.
- 1010. What is an impurity?A solution may have unwanted substances dissolved in it known as impurities.
