Question

question 7 of 16
points possible: 1.00
identify each described physical separation technique.
a solid is caught on paper or a membrane while the liquid passes through. choose...
a solvent is added to dissolve only one mixture component and then the liquids are separated. choose...
a solid mixture is heated. one component transitions directly between solid and gas. choose...
a liquid is carefully poured out, leaving the solid behind in the container. decantation

Explanation:

First Description:

The process where a solid is caught on paper or a membrane while liquid passes through is filtration. In filtration, a filter paper (or membrane) is used to retain solid particles, and the liquid filtrate passes through.

When a solvent is added to dissolve only one component of a mixture and then liquids are separated, this is liquid - liquid extraction (or just extraction). The solvent dissolves the target component, and then the two immiscible liquids (the original solvent and the added solvent with the dissolved component) can be separated, often using a separatory funnel.

When a solid mixture is heated and one component transitions directly from solid to gas, this process is sublimation. Substances like iodine or dry ice (solid carbon dioxide) undergo sublimation, where they skip the liquid phase when changing state due to heating (or pressure changes).

Answer:

Filtration

Second Description: