wiki Word: Colloid                                                                                    

PRONOUNCIATION KEY:  call-oy-d                                                                                                                                               
 

 

 

 

 

 

Definition: A system of fine particles that are dispersed in a continuous    fashion that prevents them from settling on the bottom of the substance. 

Colloids are just a way scienstists classify substances, "A colloid is a type of mechanical  mixture      where one substance is dispersed evenly throughout another."-wiki source. That means that there   are at least two substances mixed with each other and often are not seen apart (the substances)     while together.                                                                                                                                                                                                                                                                                                       

 Because of this dispersal, some colloids have the appearance of solutions. besides this, colloids are  easy to recognize.                                                                                                                                  

A cool lync-word: call -noid!                                                                                                                                                          

                                                                                                                                                                                                                     

                                                                                                         

                                                                                                          

The dispersed-phase particles have at least one dimension which is                               between one nanometre and one micrometre. Such particles are normally invisible    to a normal microscope, though their presence can be confirmed with the use of an ultramicroscope or an electron microscope. homogenus mixtures with a dispersed phase in this size range may be called colloidal aerosols, colloidal emulsions, colloidal foams, colloidal dispersions, or hydrosols. The dispersed- phase particles or droplets are largely affected by the surface chemistry present in the colloid.

                                                                                                                                        

                                                                                                                               

 

 c                                                                                                                                                          

a colloid crystal

The classification of a substance under the name colloid is a nessecery, documentation of a substances properties for scientists conducting           experimentation, research, hypothesising or recording. for example: somone  discovered a stronger hair gel. they would record the name they call it, its    elemental properties, and its form. the gel would go under colloid and could  be found easily if needed for reference, that is why colloid and the classification of substances is required.                                            

 

Orginal Author: 

 Name Class Period
 Patrick Brennan  5th period

 

Status:

 Date Status                  
 3/18/08  3/17/08

KEY:

  • Completed = This wiki is ready to be assessed for a grade.
  • Graded = Mrs. Flynt has graded this wiki. Author has 3 weeks to open page for peer edits.
  • Open for Editing = The author has has relinquished control. This page is now open for peer editing and changes to improve its usefulness.

 

Peer Editing:

Name (First, Last Init.) Period Date Description of what was changed
       
       
       
       
 

 


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