Aircraft systems

Classified in Chemistry

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both are states of matter/both have particles

in solids the particles are very close together and in liquids no/solid have a definate shape and liquids no

both doesnt have a definate shape/both take the shape of the container
in gases the particles are far apart/the particles of gas vibrate

they can flow because the molecule are moving. They can slide over each other.

oxygen, argon, carbon dioxede, nitrogen
is the force on the atmosphere on the Earths surface and all bodies wich are on it, due to its weight

melting-boliling  freezing-condensation

both transform liquid to gas/ in boiling we can see bubbles

temperature  volume    pressure
=                   decrease  increase   syringe
increase            =           increase  
increase          increase     =          explosion of spray



Heterogeneous properties:
- The mixture doesnt have uniform composition
- Each of the substances forming the mixture keeps its properties
- Substances in mixture can be separated by phisical methods
- Separated the components in this methods, simple methods can be used, sieving or filtration

homogeneous systems:
-Has a uniform distribution and the same physical and chemical properties at all points
homogeneous systems- 2 or more components- solutions, colloids
                                     - single components-pure 

solution: is a uniform and homogeneous mixture made up of various pure substances in variable proportions

colloids: are mixtures, the particles of solute cant b seen by the naked eye, only using a microscope. They cant be considered solutions

state of agregation: Liquid solutions- water+solid solute
                                                          -     "    " liquid  "
                                                          -     "     " gaseous "
                                 solid solutions or alloys- steel, bronze
                                 gaseous solutions- fog

proportion: dilute, concentrated, saturated, supersaturated

atoms: are made up of protons and neutrons in a nucleus. Electrons are in constant motion in the space around the nucleous

atomic number: its the number of protons of an atom, letter Z
mass number: its equal to the sum of protons + neutrons, letter A
valence: its the exact number of electrons that an atom: captures, looses, shares: o combine with another atom


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