States of Matter
three states of matter
solid, liquid, gas
two phase changes on the WARMING curve
melting, boiling
true/false
all particles in a PURE substance are mostly the same
false
identical
three subatomic particles
proton, neutron, electron
reactants
very close particles that vibrate in place
solid
two phase changes on the COOLING curve
condensation, freezing
what are the two types of mixtures
homogeneous, heterogeneous
a change in an elements mass is called
isotope
right side of the arrow is called
products
extremely far apart particles that move quickly
gas
what happens to the temperature during a phase change
stays the same
process that separates two substances by evaporating a liquid and recondensing vapor
distillation
rows are called
columns are called
periods
groups
when energy is added and stored
endergonic
particles that flow and take up no shape
liquid
the boiling point of water (degrees celcius)
process using a filter to separate substances
filtration
an ion changes that elements...
purpose of a catalyst in a chemical reaction
speeds up reaction
tendency for a fluid to equally spread out its particles
the freezing point of water (degrees celcius)
a container of salad dressing with separation is an example of
suspension
the periodic table is mostly made up of what element class
metals
__ H2SO4 + __ HI --> __H2S + __ I2 + __H2O
what type of reaction is it?
_1_ H2SO4 + _8_ HI --> _1_H2S + _4_ I2 + _4_H2O
what type of reaction is it?
COMBUSTION