Small or large molecules dispersed in an aqueous liquid to which a gelling agent has been added are called gels or jellies. True False

Match the following terms related to gels with the correct definition or description. - imbibition - swelling - syneresis - thixotropy - xerogel A. the dispersion medium is expressed in droplets and the gel shrinks B. taking up a liquid with an increase in volume C. a gel changes from semisolid to liquid without a change in volume or temperature D. taking up liquid without increasing in volume E. a gel from which the liquid has been removed, leaving only the framework (the dispersed phase and any solids in the dispersion medium)

Which of the following statements are TRUE regarding Gels? Select all that apply. A. Gels usually need to be shaken to liquefy them for pouring because they may form a thixotrope. B. A gel is made of plastic. C. Single phase gels have macromolecules uniformly distributed throughout a liquid D. Two phase gels have floccules of small particles and are also called magmas

Consider gel-filtration chromatograpy and select the correct statement(s).Question 3Answer1.The larger the volume a particle wanders in, the earlier it elutes.2.The total column volume equals to the sum of the internal bead volume and of the volume between the beads.3.The larger the volume a particle wanders in, the later it elutes.4.The solid phase is composed of porous beads.5.It separates the analyte components according to their size.

Sol and gel are examples of —

A substance that is solute in a colloidal stage.AerogelDispersed phaseDispersed mediumBoth B and C