In distillation components of a mixture are separated into groups of molecules with simi- lar

1. densities.
2. melting points. 3. None of these 4. bond energies. 5. boiling points.

Filtration is which method of separation? 1. physical
2. chemical

Fractional distillation separates mixtures by their boiling point.

To answer #2 you must know what a physical change is and what a chemical change is. In a physical change the material never changes its comp;osition. IN a chemical change the composition changes. So when you filter something do you change the copmposition or not.

To determine the answer to the first question about distillation, we need to understand the principle of distillation. Distillation is a separation technique used to separate the components of a mixture based on their different boiling points. The components with higher boiling points will condense and collect as a separate fraction, while the components with lower boiling points will vaporize and can be collected separately.

In the given options, the correct choice for the separation of components in distillation is option 5, boiling points. During distillation, the components are separated into groups with similar boiling points.

Moving on to the second question about filtration, filtration is a method of separating substances based on size or insolubility. It involves passing a mixture through a filter medium to separate solid particles from a liquid or gas.

The correct choice for the method of separation in filtration is option 1, physical. Filtration is a physical process where substances are separated based on their physical properties, such as particle size or phase (solid, liquid, gas). It does not involve any chemical reactions.

To summarize:
1. In distillation, components are separated into groups of molecules with similar boiling points.
2. Filtration is a physical method of separation.