Unit 4 AP Chemistry

Front

What is a net ionic equation?

Back

A net ionic equation shows only the species that participate in a chemical reaction, omitting the spectator ions.

Front

What is a precipitation reaction?

Back

A precipitation reaction occurs when two aqueous solutions react to form an insoluble solid, known as a precipitate.

Front

What is the role of spectator ions in a chemical reaction?

Back

Spectator ions are ions that do not participate in the actual chemical reaction and remain unchanged in the solution.

Front

How do you identify a precipitate in a reaction?

Back

A precipitate can be identified as a solid that forms and separates from a solution during a chemical reaction.

Front

What is the Brønsted-Lowry theory of acids and bases?

Back

The Brønsted-Lowry theory defines acids as proton donors and bases as proton acceptors.

Front

What is a conjugate acid-base pair?

Back

A conjugate acid-base pair consists of two species that transform into each other by the gain or loss of a proton.

Front

What is the significance of stoichiometry in chemical reactions?

Back

Stoichiometry allows us to calculate the quantities of reactants and products involved in a chemical reaction based on balanced equations.

Front

How do you calculate the mass of a reactant needed to produce a certain amount of product?

Back

Use the molar ratio from the balanced equation and the molar mass of the reactant to find the required mass.

Front

What is the molar mass of aluminum (Al)?

Back

The molar mass of aluminum is approximately 27 g/mol.

Front

What is the formula for calculating moles from mass?

Back

Moles = mass (g) / molar mass (g/mol).