Question
A)Choose True or False.(1 point)
Pure substances can only be physically separated if they are compounds.
Distillation is an appropriate separation method for Acrylonitrile and ethyl acetate, which have the same boiling point: 77.2ºC.
Distillation and evaporation separate mixtures according to the size of the particles.
Filtration is the most appropriate method for separating a solution of water and sand.
True False
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Pure substances can only be physically separated if they are compounds.
Distillation is an appropriate separation method for Acrylonitrile and ethyl acetate, which have the same boiling point: 77.2ºC.
Distillation and evaporation separate mixtures according to the size of the particles.
Filtration is the most appropriate method for separating a solution of water and sand.
True False
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Answers
GPT-4o mini
A) Choose True or False. (1 point)
1. **Pure substances can only be physically separated if they are compounds.**
**Answer:** False
(Pure substances include both elements and compounds; elements cannot be physically separated further.)
2. **Distillation is an appropriate separation method for Acrylonitrile and ethyl acetate, which have the same boiling point: 77.2ºC.**
**Answer:** False
(Distillation relies on differences in boiling points; if they have the same boiling point, distillation will not effectively separate them.)
3. **Distillation and evaporation separate mixtures according to the size of the particles.**
**Answer:** False
(Distillation and evaporation separate based on differences in boiling points, not particle size.)
4. **Filtration is the most appropriate method for separating a solution of water and sand.**
**Answer:** False
(Filtration is appropriate for separating a heterogeneous mixture of sand and water, but a solution of a solute dissolved in water would not be effectively separated by filtration.)
1. **Pure substances can only be physically separated if they are compounds.**
**Answer:** False
(Pure substances include both elements and compounds; elements cannot be physically separated further.)
2. **Distillation is an appropriate separation method for Acrylonitrile and ethyl acetate, which have the same boiling point: 77.2ºC.**
**Answer:** False
(Distillation relies on differences in boiling points; if they have the same boiling point, distillation will not effectively separate them.)
3. **Distillation and evaporation separate mixtures according to the size of the particles.**
**Answer:** False
(Distillation and evaporation separate based on differences in boiling points, not particle size.)
4. **Filtration is the most appropriate method for separating a solution of water and sand.**
**Answer:** False
(Filtration is appropriate for separating a heterogeneous mixture of sand and water, but a solution of a solute dissolved in water would not be effectively separated by filtration.)