Compounds and Stoichiometry

mole

amount of substance that contains same number of particles found in 12 gram sample of carbon 12

molecular/formula weight

measured in amu per molecule

molar mass

measured in grams per mole

combustion reactions

fuel is reacted with an oxidant to produce oxide and water

combination reactions

two or more reactants form one product

decomposition reactions

compound breaks down into two or more substances, usually from heating or electrolysis

single-displacement reactions

an atom of one compound replaced by an atom of another element

double-displacement reactions

elements from two different compounds displace each other

net ionic equations

only shows species that actually participate in the reaction

neutralization reactions

specific double displacement reactions that occur when an acid and base react to form a salt and water

catalysts

increase reaction rate by lowering activation energy