Stoichemetry
What is a mole in chemistry?
6.02 × 10²³ particles
What unit is heat measured in?
Joules
What does "STP" stand for?
Standard Tempature and Pressure
What number is neutral on the pH scale?
What makes reactions go faster?
Heat, more concentration, or a catalyst
What do you always do first in stoichiometry problems?
Balance the equation
What kind of reaction absorbs heat?
Endothermic
What is the formula for the Ideal Gas Law?
PV=nRT
If a solution has a pH of 13, is it an acid or a base?
A base
What is activation energy?
Energy needed to start a reaction
What is the limiting reactant?
The one that runs out first
Formula to calculate heat?
q = m × c × ΔT
What does "n" stand for in the ideal gas law?
Number of moles
What kind of reaction happens when an acid and base mix?
Nuetralization
What does a catalyst do?
Speeds up a reaction
What unit do we usually use to compare amounts of substances in a chemical reaction?
Moles
What does ΔT stand for?
Change in tempature
What is the name of the law that says pressure and volume are connected?
Boyles Law
What do acids produce in water?
H⁺ ions
What does it mean if a reaction is reversible?
The products can change back into reactants
If 3 moles of oxygen gas react in the equation 2H₂ + O₂ → 2H₂O, how many moles of water are made?
6 moles of water
What does a calorimeter do?
Measures the heat in reactions
What are the standard temperature and pressure (STP) values?
0°C and 1 atm
What do bases produce in water?
OH⁻ ions
If you change something in a reaction at equilibrium, what will the reaction do?
It will shift to balance things out again