CHEM 121 FINAL EXAM Questions with
verified Answers- PORTAGE LEARNING
2025
hydronium ion --- correct answer ---acids are H+ donors; H3O+ IS
WHAT?
arrhenius acid --- correct answer ---substance that when added to
water increases the concentration of H+ ions present
dissociate completely --- correct answer ---strong acids do what in
water?
dissociate partially --- correct answer ---weak acids do what in
water?
water and a salt --- correct answer ---the products of an acid-base
reaction will always be what?
molarity --- correct answer ---moles of solute per liter of solution (M=
mol/L)
, increases --- correct answer ---In dilution, the number of moles does
not change, but the volume what?
limiting reactant --- correct answer ---this is the reactant in a
chemical reaction that limits the amount of product that can be
formed
reactant in excess --- correct answer ---reactant in which some of it
will remain at the end of the reaction
theoretical yield --- correct answer ---max amount of product that can
be obtained, that YOU calculate
actual yield --- correct answer ---amount of product that we obtain in
an experiment
percent yield --- correct answer ---% = actual / theoretical x 100
heat --- correct answer ---the amount of energy that can be
transferred from one object to another due to a temperature
difference
verified Answers- PORTAGE LEARNING
2025
hydronium ion --- correct answer ---acids are H+ donors; H3O+ IS
WHAT?
arrhenius acid --- correct answer ---substance that when added to
water increases the concentration of H+ ions present
dissociate completely --- correct answer ---strong acids do what in
water?
dissociate partially --- correct answer ---weak acids do what in
water?
water and a salt --- correct answer ---the products of an acid-base
reaction will always be what?
molarity --- correct answer ---moles of solute per liter of solution (M=
mol/L)
, increases --- correct answer ---In dilution, the number of moles does
not change, but the volume what?
limiting reactant --- correct answer ---this is the reactant in a
chemical reaction that limits the amount of product that can be
formed
reactant in excess --- correct answer ---reactant in which some of it
will remain at the end of the reaction
theoretical yield --- correct answer ---max amount of product that can
be obtained, that YOU calculate
actual yield --- correct answer ---amount of product that we obtain in
an experiment
percent yield --- correct answer ---% = actual / theoretical x 100
heat --- correct answer ---the amount of energy that can be
transferred from one object to another due to a temperature
difference
