Chemistry Regents Vocabulary

Description

Chemistry vocabulary you need to know for the chemistry regents!
jlyn
Flashcards by jlyn, updated more than 1 year ago
jlyn
Created by jlyn almost 10 years ago
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Resource summary

Question Answer
Potential Energy Diagram
Activation Energy Energy needed for a reaction to take place
Activated Complex State of molecules during which reactants are changed to products
Enthaply Energy of heat changing at the same pressure
Heat of Reaction Difference between the potential energy of the products and reactants of the reaction
Catalyst Substance used to lower activation energy needed for a reaction to take place
Spontaneous Occurring almost immediately
Reversible Reaction Reaction in which the product has the ability to change back into reactants
Entropy Randomness of a reaction
Collisions Collision of atoms or molecules that affects the speed or effect of a reaction
Surface Area Area available for collisions to take place
Species Atoms or molecules that are involved in a reaction
Concentration Amount of molecules in one area
Sufficient Relating to amount of energy required for a reaction to take place
Solute What is being soluted, the minor component of the solution
Solvent What is dissolving the solute, the major part of the solution
Colligative Properties Ratio of solutes and solvents
Non-Volatile Non-reactive
Homogeneous Mixture Mixture in which the components are evenly distributed
Solution Mixture in which a solvent dissolves and distributes the solute
Heterogeneous Mixture Mixture in which components are not evenly distributed
Suspension Mixture of undissolved particles in a heterogenous solution
Miscible Something that forms a homogenous mixture is formed
Unsaturated Solution Solution where there is not enough solute added
Saturated Solution Solution at which the saturation point and an equilibrium are reached
Supersaturated Solution Solution with too much solute
Solubility The point at which the solution is saturated
Dilute A solution in which there is more solute than solute
Molarity Number of moles of a solute per a liter of that solution
Precipitate Something deposited out of a solution as a result of the solution being saturated already
Soluble Capable of being solved, distributed evenly in a saturated solution
Insoluble Incapable of being solved or reaching a saturation point
LeChatelier's Principle Principle that dictates that when a reaction in an equilibrium is put stress upon, it makes changes to restore the needed equilibrium
Equilibrium State of balance in a reaction or between opposing forces
Dynamic Equilibrium State of equality between the forward and the reverse reaction
Arrhenius Acid A substance that increases the amount of H+ ions present
Arrhenius Base Substance that increases the substance of OH- ions present
Ionized Removal or addition of an electron to make the atom an ion
Electrolyte Substance that ionizes in certain solvents, such as water. It is either a base or an acid
Amphiprotic A substance that can be both an acid and a base
Alternative Theory Acid According to Alternative Theory, acids give up a proton to the base
Alternative Theory Base According to Alternative Theory, bases receive the donated protons from acids
pH State of acidity or basicity of a substance
pH Scale Scale that rates the substance neutral, basic or acidic
Titration Technique of determining the unknown molarity of a base or an acid with its opposite’s known molarity, using the equation MaVa=MbVb
Endpoint Stage of the titration at which the indicator signals a balance between acids and bases
Equivalence Point Point at which the substance during a Titration is neutralized
Neutralization The balance between an acid and a base resulting in salt forming
Indicator Compound that changes color when reaching a specific pH
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