Classify the matter? And write general properties of homogeneous mixture and heterogeneous mixture
Answers
Matter can be classified by its state.
Solids have a set volume and shape.The inter molecular force of attraction for solid matter is very strong.
Liquids have a set volume, but change shape. The inter molecular force of attraction for liquid matter is weaker than solid matter.
Gases have neither definite volume nor shape. The inter molecular force of attraction for gaseous matter is negligible.
Plasma which are usually gaseous state of matter in which a part or all of the atoms or molecules are dissociated to form ions.
Einstein Bose Condensate (EBC) is a theoretical state of matter. The inter molecular force of attraction for EBC is so strong that the molecules cannot move whatsoever.
Matter can also be classified by its chemical composition.
A homogeneous mixture is uniform, which means that any given sample of the mixture will have the same composition. Air, sea water, and carbonation dissolved in soda are all examples of homogeneous mixtures, or solutions. No matter what sample you take from the mixture, it will always be composed of the same combination of phases. Chocolate chip ice cream is not homogeneous—one spoonful taken might have two chips, and then another spoonful might have several chips.
An example for a homogeneous mixture is a solution. The substance that gets dissolved is the solute. The substance that does the dissolving is the solvent. Together they make a solution. If you stir a spoonful of salt into a glass of water, salt is the solute that gets dissolved. Water is the solvent. The salty water is now a solution, or homogeneous mixture, of salt and water.
When different gases are mixed, they always form a solution. The gas molecules quickly spread out into a uniform composition.
Heterogeneous Mixtures
A heterogeneous mixture is not uniform. Different samples may have different compositions, like the example of chocolate chip ice cream. Concrete, soil, blood, and salad are all examples of heterogeneous mixtures.
Suspensions
When sand gets kicked up in a pond, it clouds the water. It has a greater mass than water hence it sinks to the bottom and settles down, and is no longer mixed into the water. This is an example of a suspension. Suspensions are heterogeneous mixtures that will eventually settle. They are usually, but not necessarily, composed of phases in different states of matter.