Kinetics
Given the balanced equation 2H₂(g) + O₂(g) → 2H₂O(g), what will happen to the production rate of water if hydrogen gas is added and pressure remains constant?
It will increase due to more frequent H₂ molecules colliding with O₂ molecules.
It will remain constant because pressure doesn’t change.
It will decrease since excess hydrogen dilutes oxygen's presence around it.
It will decrease as oxygen becomes a limiting factor slowing down reactions with hydrogen.
When potassium iodide reacts with lead(II) nitrate yielding yellow precipitate potassium nitrate and lead(II) iodide, what alteration would least impact instantaneous speed/rate at given moment mid-reaction?
Doubling aqueous solution total volume dilutes constituent concentrations diminishing frequency efficacious encounters amongst entities involved hereunder.
Enrichment catalyst presence expedites pathway progressions lowering systemic activation requisites thereby influencing operation velocities.
Introduction extra source ultraviolet light boosts activation energies crossover threshold henceforth quickening implementation phases.
Addition inert neon gas maintaining existing pressure/temperature conditions complements current status quo without partaking chemically.
In an experiment to measure reaction rates, which change would not alter the rate if all other conditions remained constant?
Grinding solid reactants into finer particles.
Substituting a solvent with one that has a higher dielectric constant.
Doubling the concentration of one reactant.
Using isotopes of reactants with equivalent mass numbers.
For an instantaneous rate of a reaction, it measures the rate of a reaction within a ________________________.
Specific Time Interval
Average Point in Time
Average Time Interval
Specific Point in Time
How many moles of aluminum oxide are produced from the reaction of 4 moles of aluminum with excess oxygen (4Al + 3O2 → 2Al₂O₃)?
3 moles of Al₂O₃
6 moles of Al₂O₃
4 moles of Al₂O₃
None, as aluminum does not react with oxygen.
When magnesium oxide is used in neutralization with hydrochloric acid, what is the product formed?
Magnesium iodide
Magnesium chloride
Magnesium sulfate
Magnesium nitrate
What is the equation for the instantaneous rate of a reaction?
R = k[A]^n[B]^m
Rate = -Δ[Products]/t
Rate = -d[R]/dt
Rate = -Δ[Reactant]/t

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In general terms, equilibrium is defined as the point at which the rate of the reaction is ________ is similar to the reaction __________ and the concentrations _____________.
Going Backward, Going Forward, Remaining Constant
Going Forward, Remaining Constant, Going Backward
None of the above.
Remaining Constant, Going Forward, Going Backward
Which of the following is true regarding increasing the rate of the reaction? (A) increase in pressure, (B) a catalyst, (C), increase in temperature, (D), increase in surface area?
A, C, and D
C & D
A, B, C, and D
A & B
What does the rate law equation Rate = k[A]^m[B]^n express?
The total energy absorbed or released during a chemical reaction.
The relationship between the reaction rate and concentrations of reactants.
The proportional relationship between product concentration and time.
The equilibrium constant for a given reaction.