Study chem final Flash Cards

 
Pile Management Card
chem final

loading
amu
1/2 mass of carbon
atomic massq
weighted average of the masses of the isotopes of an element
atomic #
number of protons
mass #
total number of protons and neutrons
isotope
atoms with the same number protons and diffferent number neutrons
nucleus
no charge
eectron
-
neutron
(no charge)
proton
+
vapor
gaseous state, liquid @ room temp
element
simplest form of matter
mixture
phyisica blend of 2+ substances not chemically combined
solution
homogeneous mixture
filtration
separates a solid from a liquid
chemical property
ability of a substance to undergo a speific chemical change
reactants
substance present at the start of a reaction
filtration
separates a solid from liquid
chemical property
ability of a substance to undergo a speific chemical change
reactants
substance present @ start of a reaction
phase
part of a sample with uniform composition and properties
mass
amount of matter an object contains
gas
takes shape and volume of its container
physical change
when properties of a material change, but the composition doesn't
solid
definite shape, volum
liquid
flows, has fixed volume, indef shape
chemical change
produces matter with a different composition than original matter
heterogeneous
not uniform in composition unevenly distributed
product
substance produced in a chemical reaction
Place this card into pile: