Particles and Mixtures Flashcards
solid to gas =
subliming
gas to liquid =
condensing
liquid to gas =
evaporating
liquid to solid =
freezing
solid to liquid =
melting
Why does the ammonia and hydrogen chloride experiment work?
particles of ammonia are smaller and lighter then the particles of hydrogen chloride so they diffuse through air more quickly
Solution ?
is a mixture of a solute and a solvent that does not separate out
solute?
substance being dissolved
solvent =
liquid its dissolving into
Saturated solution?
a solution where the maximum amount of solute has been dissolved so no more solute will dissolve in the solution
solubility?
a measure of how much solute will dissolve in a solvent
solubility equation?
mass of solid/ mass of water removed x100
What do atoms contain?
protons, neutrons and electrons
mass of proton?
1
mass of nuetron ?
1
mass of electron?
0.0005
charge of proton?
1
charge of neutron?
0
charge of electron?
-1
Which number is on the top of the element?
mass number
mass number =?
total protons and neutrons
atomic number ?
how many protons
isotopes?
different atomic forms of the same element, which have the same number of protons but different number of electrons
element defination?
consist of one type of atom
compound definition?
a substance that is made of two or more different elements which are chemically joined together - they are very difficult to separate
Mixture definition?
no chemical bond between different parts of a mixture - is not a pure substance
What is filtration used for?
to separate an insoluble solid from a liquid
What is crystallisation used for?
separates a soluble solid from a solution
What is chromatography used for?
separate out mixtures
How do you calculate Rf?
distance travelled by solute / distance travelled by solvent
