General Chemistry Exam 2 Study Guide CH.4-6

A comprehensive set of flashcards covering key concepts, definitions, and examples from chapters 4 to 6 of the General Chemistry course.

Chemical Reaction

A process that involves the transformation of one or more substances into different substances.

Balanced Equation

An equation that shows the same number of each type of atom on both sides of the reaction.

Stoichiometry

The calculation of reactants and products in chemical reactions based on balanced equations.

Limiting Reactant

The reactant that is used up first in a chemical reaction, limiting the amount of products formed.

Theoretical Yield

LR in grams

Percent Yield

Actual divided by Theor times 100

Combustion Reaction

A chemical reaction that typically involves a hydrocarbon reacting with oxygen to produce carbon dioxide and water.

Molarity

mols over L

Electrolyte

A substance that dissolves in water to give a solution that conducts electricity.

Net Ionic Equation

Takes out spectator ions

Strong Acid

An acid that completely dissociates in water.

Weak Acid

An acid that only partially dissociates in water.

Solubility Rules

Li, Na, NH4, C2H3O2, NO3, K

Spectator Ions

Ions that are unchanged on both sides.

Aqueous Solution

A solution in which water is the solvent.

Hydrocarbon

An organic compound consisting entirely of hydrogen and carbon.