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Molar mass

Grams, Amu


A _______ reaction is when oxygen combines with another compound to form water and carbon dioxide


a complex molecule breaks down to make simpler ones


two or more simple compounds combine to form a more complicated one

formula weight

the sum of atomic weights of each atom in its chemical formula

molecular weight

sum of atomic weights

% element

(# of atoms)(atomic weight of element)/(formula weight) x100=__________

mole (mol)

amount of matter that contains as many objects (atoms, molecules) as the number of atoms

molar mass

the mass of one mol of a substance in grams; equal to formula weight in Amu

molecular formula

molecular weight/empirical formula weight=______

limiting reactant

it determines, or limits the amount of product formed

theoretical yield

the quantity of the product that is calculated to form when all of the limiting reactants react

percent yield

actual yield/theoretical yield x 100=____________

empirical formula

grams to moles....divide each number of moles by smallest mole


molecules/avogadros number=____

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