evry thing 2 test 2 Flashcards
what is a homogenius matter
a homogenius matter is a matter that has the same propertys thru the who sample elements or compounds are always homogenius (mixtures may be homogenius or hetrogenius)
what is a hetrogenius matter
a hetrogenius matter is a substance consisting of2 or more visible parts that differ in properties (mixtures may be homogenius or hetrogenius)
what defines a pure substance
elements and compounds
what defines a mixture
a mechanical mixture or a solution
what is a solute
the least abundent substance in a solutiion (the thing that desolved)
what is a solvent
the most abundent thing in a solution dose not disolve in water
what are phisical change
This kind of change in which no new substance is prducesd
what is a chemical change
When something new substance is formed must have completely different properties the new substance will have new properties from starting material cant be undone
give 2 examples of what defines a chemical change
Cooked eggs, Burning gasoline, Souring milk, Burning paper, Cake mix -> cake
give 2 examples of what defines a physical change
Freezing, melting, boiling, dissolving, cutting thing in to pieces, thing breaking in to smaller things
what is distalation
The process by which substances can be seperated in a solution
Uses different boiling pointsin orderer to seporating it
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You heat on of the substances till it hits it boiling point letting it evaporate the It will go high then it will get farther away from the heat it condences letting it go to the next point seporating them
what are colloids
Are mixtres in witch the dispensed molecules are vary small tlike a solutions are homogenious in appearance. The particals are nearly perfectly desolved but given time will never settle are usualy foggy cloudy milky
what is a homogenius mixtures
solution
what is a hetrogeneus mixture
michanical mixtures.
what is a mixture
mixtures have at elast 2 thing in them
when you are able to see the diffent parts of a mixture it is michanical
