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Questions and Answers
How are separations classified according to the text?
How are separations classified according to the text?
- According to the temperature they use
- According to the color of the substances
- According to the volume of the mixtures
- According to the properties they exploit (correct)
Why do raw materials often require separation processes?
Why do raw materials often require separation processes?
- To increase impurities
- To decrease the volume
- To change the chemical composition
- To obtain purity (correct)
What do separation processes aim to achieve?
What do separation processes aim to achieve?
- Increase the volume of the mixture
- Combine a mixture into a single product
- Change the chemical properties of the mixture
- Convert a mixture into distinct product mixtures (correct)
What is often needed if no single difference can be used to accomplish the desired separation?
What is often needed if no single difference can be used to accomplish the desired separation?
What is enriched in at least one product mixture from the separation process?
What is enriched in at least one product mixture from the separation process?
Which property is often exploited in separation processes to achieve the desired separation?
Which property is often exploited in separation processes to achieve the desired separation?
What is the purpose of a separation process?
What is the purpose of a separation process?
How are elements or compounds found in nature?
How are elements or compounds found in nature?
What is the outcome of some separations?
What is the outcome of some separations?
How are processes often classified in separation methods?
How are processes often classified in separation methods?
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Study Notes
Classification of Separations
- Separations are classified according to the type of property used to achieve separation, such as differences in density, solubility, or particle size.
Purpose of Separation Processes
- Separation processes aim to separate mixtures into their individual components or to remove impurities from a product.
Need for Separation Processes
- Raw materials often require separation processes because they are usually found in mixtures in nature.
- Separation processes are necessary to obtain a desired product or to remove impurities.
Challenges in Separation
- If no single difference can be used to accomplish the desired separation, multiple stages or combination of processes are often needed.
Outcome of Separation
- At least one product mixture from the separation process is enriched in the desired component.
Properties Exploited in Separation
- Separation processes often exploit differences in physical or chemical properties, such as density, solubility, or particle size.
Purpose of Separation
- The purpose of a separation process is to separate mixtures into their individual components or to remove impurities from a product.
Natural State of Elements or Compounds
- Elements or compounds are often found in nature in mixtures or as impure substances.
Outcome of Some Separations
- The outcome of some separations is a purified or isolated product.
Classification of Separation Methods
- Separation methods are often classified as mechanical separations, solvent-based separations, or thermal separations.
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