Periodic Table
Graphs
Reactions
Changes
Chemistry
100

What number tells you how many protons an element has

atomic number

100

the x axis is the _____ variable

independent

100

what are on the left side of a chemical equation

reactants

100

melting ice

physical 

100

changing from a gas to a liquid

condensation

200

mass number - _____ = # of neutrons

atomic number/# of protons

200

the y axis is the _____ variable

dependent

200

what are on the right side of a chemical equation

products

200

wood on fire

chemical change

200

changing from a solid to a gas

sublimation

300

if there is more electrons than protons, what charge does the atom have?

negative
300

point where x and y axis intersect

origin

300

a ______ reaction combines things together

synthesis

300

combusting gasoline 

chemical 

300

solutions that resist changes in pH when coming into contact with acids or bases

buffers

400

smallest known particle that makes up protons and neutrons

quark

400

ratio of rise over run

slope

400

the products of a combustion reaction are 

CO2 and H2O

400

using antacid to help settle your food

chemical

400

the state of a substance where it is dissolved in water

aqueous

500

first periodic tables were arranged in what order

of increasing atomic mass

500

the slope of a graph between change in velocity and time

acceleration

500

using gases to chemically produce water is what type of reaction

synthesis

500

rubbing alcohol evaporating on your hand

physical

500

substances that speed up chemical reactions without changing the products

catalysts