Science Revision Seperating Substances

    Master this deck with 14 terms through effective study methods.

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    What defines a solid?

    Particles are tightly packed and maintain a fixed shape.

    What distinguishes a liquid from a solid?

    Particles are close but can move, taking the shape of the container.

    What is a gas?

    Particles are far apart, move quickly, and fill the available space.

    What does soluble mean?

    A substance can dissolve in a liquid.

    What is the difference between solute and solvent?

    Solute is the substance being dissolved; solvent is the liquid doing the dissolving.

    What indicates a saturated solution?

    No more solute can dissolve in the solvent.

    How can you tell if something is soluble?

    It disappears into the liquid and the liquid becomes clear.

    What happens during melting?

    A solid changes into a liquid.

    What is the process of evaporation?

    A liquid turns into a gas.

    What does filtration separate?

    Insoluble solids from liquids.

    How does crystallization work?

    Heating a solution causes the solvent to evaporate, leaving crystals.

    What is the purpose of distillation?

    To separate pure solvent from a solution.

    What is chromatography used for?

    To separate colored soluble substances.

    Why do different colors travel at different speeds in chromatography?

    Each color has a different affinity for the solvent.