Chemical Quantities
What is Avogadro’s number?
6.02 × 10²³
What is a mole ratio?
Ratio from coefficients
Which law relates pressure and volume?
Boyle’s Law
What is an endothermic reaction?
Absorbs heat
What pH is neutral?
7
What is the molar mass of H₂O?
18 g/mol
What is limiting reactant?
Reactant used first
Which law relates volume and temperature?
Charles’s Law
What is an exothermic reaction?
Releases heat
pH less than 7 means?
Acid
What is molarity?
Moles/Liters
What is percent yield?
Actual/Theoretical ×100
What happens when gas temperature increases?
Particles move faster
What does ΔT mean?
Temperature change
greater than 7 means?
Base
What is the empirical formula?
Simplest ratio
What does stoichiometry use?
Balanced equations
Unit for temperature in gas laws?
Kelvin
What is calorimetry?
Measuring heat
What does Arrhenius acid produce?
H⁺ ions
What is percent composition?
Percent of each element
Why balance equations?
Equal atoms
Formula for ideal gas law?
PV=nRT
First law of thermodynamics?
Energy conserved
What is oxidation?
Loss of electrons