Matter – anything that has mass and takes up space Any characteristic that can be used to...
-
Upload
lucas-mitchell -
Category
Documents
-
view
215 -
download
1
Transcript of Matter – anything that has mass and takes up space Any characteristic that can be used to...
Matter – anything that has mass and takes up space
Any characteristic that can be used to describe or identify matter is called a property
Very few pure substances in nature: Gold, diamond
Element:ex. H, O, N, Mg, P, K, (all on periodic table)
consists of only one kind of atom, cannot be broken down into a simpler type
of matter by either physical or chemical means, and
can exist as either atoms (e.g. argon) or molecules (e.g., nitrogen, oxygen)
Compound consists of atoms of two or more different
elements bound together, can be broken down into a simpler type of
matter (elements) by chemical means (but not by physical means),
has properties that are different from its component elements, and
always contains the same ratio of its component atoms.
H2O CO2 CH4 FeO2
Ionic compound
Molecularcompound
may be
Substance
Element
yes no
chemicallydecomposed
Compound
Mixture: consists of two or
more different elements and/or compounds physically intermingled,
can be separated into its components by physical means
Heterogeneous- Different, but may look the same
ex. Salt + sugar, pizza, sand
,
suspension is a heterogeneous mixture of larger particles. These particles are visible and will settle out on standing. Ex. Glacial water, tomato juice
Colloid - A colloid consists of tiny particles of matter that are dispersed evenly throughout. The tiny particles of matter will not settle out. Ex. Milk, jello, fog, smoke
Coagulation- breaks up the colloid
Tyndall effect –
Homogeneous- Same, also called a solution – will not settle out
ex. Rubbing alchohol, vinegar, salt water, air
Mixture
HeterogeneousHomogeneous
uniform throughout
yes no
Solute – what is being dissolved (less of this)
Solvent –what is doing the dissolving (more of this) a lot of times this is water but not always
dissolve
TYPES OF SOLUTIONS
Concentrations
Solute Less than 50%
SolventMore than 50%
Examples
liquid liquid alcohol - waterwine beer, vodkaacetic acid / water - vinegar
solid liquid salt - watersaline (NaCl) solution sugar solutionCaCO3 - hard water
gas liquid oxygen - water CO2 - carbonated water
NH3 - ammonia solution
gas gasair =
oxygen - nitrogen
gas solid hydrogen - platinum
liquid gas water in air
solid gas smog
liquid solid mercury - another metal Dental work
solid solid alloy
Matterto be better understand its
Properties
Physical orChemical
which may be
Intensive orExtensive
separate byphysicalprocess
Substance Mixture
Compound Element HeterogeneousHomogeneous
no yes
may be maybe
Ionic compound
Molecularcompound
may be