Periodic Table
What number tells you how many protons an element has
atomic number
the x axis is the _____ variable
independent
what are on the left side of a chemical equation
reactants
melting ice
physical
changing from a gas to a liquid
condensation
mass number - _____ = # of neutrons
atomic number/# of protons
the y axis is the _____ variable
dependent
what are on the right side of a chemical equation
products
wood on fire
chemical change
changing from a solid to a gas
sublimation
if there is more electrons than protons, what charge does the atom have?
point where x and y axis intersect
origin
a ______ reaction combines things together
synthesis
combusting gasoline
chemical
solutions that resist changes in pH when coming into contact with acids or bases
buffers
smallest known particle that makes up protons and neutrons
quark
ratio of rise over run
slope
the products of a combustion reaction are
CO2 and H2O
using antacid to help settle your food
chemical
the state of a substance where it is dissolved in water
aqueous
first periodic tables were arranged in what order
of increasing atomic mass
the slope of a graph between change in velocity and time
acceleration
using gases to chemically produce water is what type of reaction
synthesis
rubbing alcohol evaporating on your hand
physical
substances that speed up chemical reactions without changing the products
catalysts