Chemistry 1010-Exam 3 Questions and
All Correct Answers.
Name the weakest to strongest dipole interactions - Answer induced dipole-induced dipole,
dipole-induced dipole, dipole dipole
Describe the characteristics of an endothermic reaction - Answer 1. reactions in which there
is a net absorption of energy
2. positive sign
3. potential energy of the product is larger than the reactant
Describe the characteristics of an exothermic reaction - Answer 1. reactions in which there is
a net release of energy
2. negative sign
3. potential energy of the reaction is larger than the product
What affects the speed of a reaction? - Answer concentration of reactants and the
temperature of then reactants
Define a Broasted-Lowry acid and base - Answer acid: compound that donates a proton or
H+
base: proton h+ acceptor
Define a Lewis acid and base - Answer acid: compound that accepts a lone pair of electrons
base: donates a lone pair of elections
what determines the strength of an acid? - Answer strength is determined by how much of
the original chemical is left when dissolved in water.
(when HCl is mixed with water almost all of the original HCl dissociates. compared to acetic acid
when it is mixed with water some of the original acetic acid will remain)
What is activation energy? - Answer the minimum energy required for a chemical reaction to
proceed.
reactant molecules can transform to product molecules only if the reactant molecules possess
an amount go energy equal to or greater than the activation energy. (car climbing hill)
All Correct Answers.
Name the weakest to strongest dipole interactions - Answer induced dipole-induced dipole,
dipole-induced dipole, dipole dipole
Describe the characteristics of an endothermic reaction - Answer 1. reactions in which there
is a net absorption of energy
2. positive sign
3. potential energy of the product is larger than the reactant
Describe the characteristics of an exothermic reaction - Answer 1. reactions in which there is
a net release of energy
2. negative sign
3. potential energy of the reaction is larger than the product
What affects the speed of a reaction? - Answer concentration of reactants and the
temperature of then reactants
Define a Broasted-Lowry acid and base - Answer acid: compound that donates a proton or
H+
base: proton h+ acceptor
Define a Lewis acid and base - Answer acid: compound that accepts a lone pair of electrons
base: donates a lone pair of elections
what determines the strength of an acid? - Answer strength is determined by how much of
the original chemical is left when dissolved in water.
(when HCl is mixed with water almost all of the original HCl dissociates. compared to acetic acid
when it is mixed with water some of the original acetic acid will remain)
What is activation energy? - Answer the minimum energy required for a chemical reaction to
proceed.
reactant molecules can transform to product molecules only if the reactant molecules possess
an amount go energy equal to or greater than the activation energy. (car climbing hill)
