Acids & Bases
Energy
Redox
Equilibrium
Math
100
This is what the numbers on the pH scale mean.
What is how acidic (0-6) or how basic (8-14) a substance is?
100
This type of energy is the energy an object has stored in it.
What is potential energy?
100
These are the basic definitions of reduction and oxidation.
What is reduction is gain electrons, and oxidation is loss of electrons?
100
N2O4 (g) + O3 (g) <--> N2O5 (s) + O2 (g)
Delta H is -129.2 kJ.
What happens to the concentration of O3 when the concentration of N2O5 increases?
Nothing.
100
In the equation q = m*c*delta T, what is the sign of q when energy is released?
Negative.
200
In an acid-base reaction, the [acid/base] donates a proton and the [acid/base] accepts the proton.
What is acid, base?
200
This type of energy is the energy an object has due to motion.
What is kinetic energy?
200
These are the oxidation numbers for Cr2O72-.
What are: Cr +6, O -2?
200
N2O4 (g) + O3 (g) <--> N2O5 (s) + O2 (g)
Delta H is -129.2 kJ.
What happens to O2 if the temperature is raised?
It decreases.
200
Molarity = [blank] / [blank].
Molarity = moles / volume (L)
300
Identify the acid & base in the following chemical reaction:
HNO3 + PH3 --> PH4+ + NO3-
Acid: HNO3
Base: PH3
300
What is B?
300
If an atom changes its oxidation number from 6 to 3, is has been[oxidized/reduced] by [blank] number of electrons.
What is reduced by 3 electrons?
300
N2O4 (g) + O3 (g) <--> N2O5 (s) + O2 (g)
Delta H is -129.2 kJ.
What happens to the concentration of O2 if the concentration of O3 is raised?
It increases.
300
This is the overall order of the following chemical reaction:
R = 33.5 * [CO] * [O2]2
What is 3?
400
The lower the pH, the stronger the acid, meaning the ionization constant will be [big/small].
What is big?
400
The sign of the change in entropy is impacted by this.
What is whether the products or reactants have more or fewer gas molecules?
400
T/F: this is a redox reaction.
4Al + 3O2 --> 2Al2O3
What is TRUE?
400
N2O4 (g) + O3 (g) <--> N2O5 (s) + O2 (g)
Delta H is -129.2 kJ.
What happens to N2O4 if pressure is decreased?
It decreased.
400
This is the equation for the combined gas law.
What is: P1V1/T1 = P2V2/T2
500
Write the acid-base chemical reaction for C2H6O and CH5N given that C2H6O is the acid.
C2H6O + CH5N --> C2H5O- + CH6N+
500
Energy is a product when [blank].
Energy is a reactant when [blank].
What is delta H is negative and delta H is positive?
500
T/F: this is a redox reaction.
H2S + Cl2 --> S + 2HCl
What is TRUE?
500
N2O4 (g) + O3 (g) <--> N2O5 (s) + O2 (g)
Delta H is -129.2 kJ.
What will happen to the concentration of N2O5 if the concentration of N2O4 is lowered?
It will decrease.
500
This is the inequality used to determine if a reaction is spontaneous.
What is: delta H - T*delta S < 0