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Different types of matter (Separating Mixtures: (Paper chromotography…
Different types of matter
Element
Made from only one type of attom.
Attom that contains: electrons, protons, neutrons.
simplest substance
compund
substance
Water: One Oxygen and two hydrigen attoms.
All compunds are molecules, but not all molecules are compunds
Chemical band of two or more elements
substances
Specific composition in his molecules, attoms, phisical propierties.
Pure elemnts and compunds
iron for example
Can not be separated into components
Can be liquids, solids, plasma and gases
Mixture
Combination of two or more pure susbtances of the same phase or different.
Can be separated by chemicals,
Do not involve chemical reaction or bonds.
Two types
Homogeneus Mixture
Sample of matter that has the same composition throughout
Alloys and solutions
Substances: water, gold
Heterogeneus Mixture
Does not have uniform properties or composition
Collids, emulsions, or suspensions.
Separating Mixtures:
Paper chromotography
Used to know how many susbtances are in a particular blob of ink.
Filtration
Separation of an insolouble solid from a liquid
sand and water
Evaporation
Used to separate soluble solid and solvent.
Heat the solution until the solvent evaporates leaving the residue.
water with a solid
Simple Destilation
Separtes liquid from from a solution, the vapour is collected by condensation.
water from salt
Fractional Destilation:
Separate a solution of two micsible liquids, taking advantage of the melting point.
Salt water, gasoline
Magnetism
Separate two solids that have magnetic properties
you can to separate : iron,cobalt, nickel
Separating fuel
Two liquids that are not dissolve well in each other.
