Broad Mixtures
This term is defined as a combination of two or more substances that are not chemically combined.
What is a mixture?
Trail mix, pepperoni pizza, and a bowl of fruit salad are all explicitly listed as examples of this specific type of mixture.
What is a mechanical mixture?
This is the vocabulary term given to a substance that dissolves another substance.
What is a solvent?
This specific name is given to solutions that exist purely as a solid mixture of chemical elements.
What is an alloy?
Because their particles are widely dispersed throughout the continuous phase rather than dissolved, colloids often have this visual appearance.
What is cloudy?
This is a mixture in which the particles are evenly distributed through the mixture, meaning the individual parts cannot be seen.
What is a homogeneous mixture?
The individual parts of a mechanical mixture can be easily seen and separated by hand or by using this common mechanical device.
What is a filter?
This is the vocabulary term given to a substance that is dissolved into another substance.
What is a solute?
In order to officially be classified as an alloy, at least one of the chemical elements in the mixture must be this.
What is a metal?
Colloids are different from suspensions because their particles are not heavy enough to settle out, meaning they stay suspended even without this action.
What is stirring (or agitating)?
This is a mixture in which the particles are not evenly distributed through the mixture, so the individual parts can be seen.
What is a heterogeneous mixture?
Salad dressing, a snow globe, and muddy water are all classified under this specific heterogeneous mixture category.
What is a suspension?
Breaking the assumption that solutions are always liquids, the text notes they can actually exist in these three states of matter.
What are liquid, solid, or gaseous?
Alongside steel and brass, the text explicitly highlights this valuable substance as an example of an alloy.
What is sterling silver?
While mechanical mixtures can be divided using a filter, the notes state that the particles of a colloid absolutely cannot be separated by this tool.
What is a filter?
In a colloid system, this term refers specifically to the fluid phase within which solid or fluid particles are distributed.
What is the continuous phase?
Because their particles are too heavy to stay suspended for long, suspensions will do this unless the mixture is continuously stirred or agitated.
What is settle out?
Solutions are considered homogeneous because once a solute is completely dissolved, its individual particles cannot be seen by this.
What is the naked eye?
Page 3 defines brass as an alloy consisting of a homogeneous mixture of these two specific chemical elements.
What are copper and zinc?
Milk, paint, and pudding are all explicitly grouped together as examples of this category of mixture.
What is a colloid?
This phase in a two-phase system consists of finely divided particles, droplets, or bubbles of one substance distributed through another substance.
What is the dispersed phase?
By definition, suspensions are heterogeneous mixtures that have solid or liquid particles scattered around in one of these two specific states of matter.
What is a liquid or a gas?
According to Page 3, this quantitative rule always applies to solutions regarding the relationship between the two primary components.
What is "there is always more solvent than solute present"?
Alloys can be separated back into their original parts by melting them because the different elements inside possess different values for this specific temperature point.
What is a melting point?
Based on the state of the dispersed and continuous phases, the text outlines these four distinct named types of colloids.
What are sols, emulsions, foams, and aerosols?