stoichiometry

stoichiometry is the study of the ___ relationships that exist in chemical reactions

quantitative

the ___ in a balanced equation indicates the number of particles or moles of each substance in a chemical equation

coefficients

you must always work with a ____ balanced equations to complete stoichiometry problems correctly

balanced

a balanced equation verifies the law of _____

conservation of mass

the _____ is the part in stoichiometry that allows us to move from the given to the unknown

mole: mole ratio

STP refers to a standard temperature of ___ and a standard pressure of ___

0 degrees celsius, 1 atom

the term stoichiometry is derived from the greek words stoichion and matron

true

you can determine the number of moles of any substance produced in a reaction if you know the number of moles of at least two reactants

false

The total mass of reactants is always less than the total mass of the products in a chemical reaction

False

in solving a mass – mass problem, it is necessary to convert the given mass to volume of an unknown

False

when the mass of a reactant is given, the number of moles can be found by dividing the mass by the reactant molar or formula mass

True

when quantities of reactants are available in the exact ratio described by the balanced equation, they are said to be in stoichiometry proportions

True

The reactant that limits the amount of product that can be formed, always has the least number of moles

False

if the amount of the limiting reactant is known, it is possible to predict the amount of products formed

True

even though it is possible to calculate the amount of products expected in a chemical reaction, the theoretical yield differs from this prediction

False

The actual yield of a chemical reaction is never more than the theoretical yield

True

The actual yield should be calculated before entering the lab so you know how much product should be produced

False