Vocabulary 1
Vocabulary 2
Vocabulary 3
Equilibrium
Acids and Bases 1
100
What is the pH scale?
A tool used to measure how acidic or basic water is?
100
What is a Neutralization Reaction?
When an acid and a base combine to form water and a salt.
100
What is the Law of Conservation of Mass?
In a chemical reaction, matter is neither created nor destroyed.
100
What would be the Keq of the chemical equation:
H2 + I2 = 2HI
[HI]2 / [H2] x [I2]
100
What is the only compound that should have a pH of 7?
Water
200
What are acids?
Anything that tastes sour, has H+ ions, and has a pH lower than 7
200
What are bases?
Anything that tastes bitter, has OH- ions, and has a pH higher than 7.
200
What is a Chemical Coefficient?
A large-sized number placed in front of a whole chemical formula to balance chemical equations.
200
What would a graph of the two reaction rates of a system in dynamic equilibrium look like?
200
What color do acids turn in Phenolphthalein?
Clear
300
What is Equilibrium?
When opposing processes are equal and balanced
300
What is Indicator?
Chemicals that are one color in acids and another color in bases.
300
What is a Chemical Subscript?
A small-sized number on the bottom right of any chemical symbol
300
What would a graph of concentration of reactants and products look like for a system in dynamic equilibrium?
300
How did Svante Arrhenius describe acids and bases?
Acids have H+ ions and bases have OH- ions.
400
What is Physical Equilibrium?
When two opposing physical processes are balanced and equal
400
What is a precipitate?
Insoluble ionic solid products of a chemical reaction.
400
What are Catalysts?
Chemicals that speed up a chemical reaction but do not alter the reaction in any other way.
400
One of the best examples of Dynamic Equilibrium is a sealed container of water. Explain how this system is in dynamic equilibrium?
The amount of water evaporating is equal to the amount of water condensing.
400
How did Bronsted/Lowry describe acids and bases?
Acids are proton donors and bases are proton receivers
500
What is Dynamic Equilibrium?
When two opposing and continuous processes are balanced and equal
500
What does Amphiprotic mean?
Compounds that can act either as a Bronsted/Lowry acid or base.
500
What is The Collision Theory?
In order for a chemical reaction to occur, particles must collide
500
What are 3 conditions of a system in dynamic equilibrium?
Forward and reverse processes are at equal rates, it is a closed system, concentrations of reactants and products remains the same at all time.
500
Hydrochloric Acid (HCl) is a strong acid while Vinegar (HC2H3O2) is a weak acid. Explain this.
In water, HCl the hydrogen in HCl completely dissociates why in Vinegar the hydrogens do not completely dissociate