RIO SALADO CHEM 130 COMPREHENSIVE
EXAM 2026 QUESTIONS AND ANSWERS 100%
CORRECT
◉ Temperatures affect on K . Answer: An increase in temperature will
cause K to increases.
A decrease in temperature will cause K to decreases.
◉ Reaction Order . Answer: The overall reaction or part of the reaction
(m, n, and m+n).
◉ Equilibrium . Answer: Equilibrium is where the forward and reverse
reactions are equal and the formation of either products or reactants are
not faster than the other. The only things that affects equilibrium is
concentrations and temperature.
◉ Integrated Rate Law Expressions . Answer: First order: ln[A]t=-
kt+ln[A]0
Second order: 1/[A]t=kt+1/[A]0
◉ Half-life equation . Answer: Zero order: Initial concentration/2*k or
, 1/2 of Initial concentration/k
First order: 0.693/k
Second order: 1/k*Initial concentration
◉ Collision Theroy . Answer: Collision theory is the greater the
collisions per second the greater the reaction rate. This is met by
Temperature and concentration of reactants can greatly impact the
collisions per second. This is because as you increase temperature you
increase the speed at which the molecules are going. As you increase the
speed of the molecules, you are more likely to have more collisions with
higher energy than before. As you increase the concentration of
reactants, without changing container size or pressure, you will have
more molecules to collide with, increasing the number of collisions per
second.
◉ pH, pOH, kW, [OH-],[H+], and their relations . Answer: pH=14-pOH
[H+]=-log(pH)
Kw=1*10^-14
Kw=[H+][OH-]
Kw is the equilibrium constant of water which is formed by hydroxide
ions and protons.
◉ Amphoteric Substances . Answer: These are substances that act like
acids and bases.
EXAM 2026 QUESTIONS AND ANSWERS 100%
CORRECT
◉ Temperatures affect on K . Answer: An increase in temperature will
cause K to increases.
A decrease in temperature will cause K to decreases.
◉ Reaction Order . Answer: The overall reaction or part of the reaction
(m, n, and m+n).
◉ Equilibrium . Answer: Equilibrium is where the forward and reverse
reactions are equal and the formation of either products or reactants are
not faster than the other. The only things that affects equilibrium is
concentrations and temperature.
◉ Integrated Rate Law Expressions . Answer: First order: ln[A]t=-
kt+ln[A]0
Second order: 1/[A]t=kt+1/[A]0
◉ Half-life equation . Answer: Zero order: Initial concentration/2*k or
, 1/2 of Initial concentration/k
First order: 0.693/k
Second order: 1/k*Initial concentration
◉ Collision Theroy . Answer: Collision theory is the greater the
collisions per second the greater the reaction rate. This is met by
Temperature and concentration of reactants can greatly impact the
collisions per second. This is because as you increase temperature you
increase the speed at which the molecules are going. As you increase the
speed of the molecules, you are more likely to have more collisions with
higher energy than before. As you increase the concentration of
reactants, without changing container size or pressure, you will have
more molecules to collide with, increasing the number of collisions per
second.
◉ pH, pOH, kW, [OH-],[H+], and their relations . Answer: pH=14-pOH
[H+]=-log(pH)
Kw=1*10^-14
Kw=[H+][OH-]
Kw is the equilibrium constant of water which is formed by hydroxide
ions and protons.
◉ Amphoteric Substances . Answer: These are substances that act like
acids and bases.
