Atomic Structure
What particle has a positive charge?
Proton
How many elements are currently on the periodic table?
118
What is a mole?
6.022 × 10²³ particles
What is a reaction called when two substances combine into one?
Sythesis
Which gas law says pressure and volume are inversely related?
Boyle's Law
What is the center of an atom called?
Nucleus
What family is found in Group 18?
Noble Gases
What do you start with in stoichiometry problems?
Given amount
What type of reaction breaks a compound apart?
Decomposition
Which law says volume and temperature are directly related?
Charles Law
What particle has no charge?
Neutron
What family is the most reactive metals?
Alkali Metals
What is this process called: converting grams → moles → moles → grams?
Dimensional analysis
What reaction is: AB + CD → AD + CB ?
Double Replacement
What happens to pressure when volume decreases?
Pressure Increases
What particle orbits the nucleus?
Electron
What do periods (rows) tell you?
Number of Energy Levels
What must be used to balance reaction amounts?
Mole ratio
What shows reactants turning into products?
Arrow (→)
What happens to volume when temperature increases?
Volume increases
The atomic number tells the number of what in an atom?
Protons
What type of elements are found in the middle of the table?
Transition Metals
What must be balanced before doing any stoichiometry?
The Chemical Equation
Name a sign of a chemical reaction.
Color change / gas / precipitate / temperature change
What is the formula for Boyle’s Law?
P₁V₁ = P₂V₂