AP Chemistry 4.1-4.4

Front

What is a net ionic equation?

Back

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

Front

How do you identify spectator ions in a reaction?

Back

Spectator ions are ions that do not change during the reaction and are present in the same form on both sides of the equation.

Front

What is the difference between a chemical and a physical process?

Back

A chemical process involves a change in the chemical composition of substances, while a physical process involves changes in physical state or appearance without altering the chemical composition.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

How do you determine if a reaction produces a precipitate?

Back

To determine if a reaction produces a precipitate, consult solubility rules to see if any of the products are insoluble in water.

Front

What is the significance of the states of matter in a chemical equation?

Back

The states of matter (solid, liquid, gas, aqueous) indicate the physical form of the reactants and products, which can affect the reaction's behavior.

Front

What is the role of hydroxide ions (OH-) in precipitation reactions?

Back

Hydroxide ions can react with metal cations to form insoluble metal hydroxides, which precipitate out of solution.

Front

What is the formula for iron(III) hydroxide?

Back

The formula for iron(III) hydroxide is Fe(OH)₃.

Front

What does it mean for a reaction to be balanced?

Back

A balanced reaction has equal numbers of each type of atom on both sides of the equation, adhering to the law of conservation of mass.

Front

What is the process of writing a balanced chemical equation?

Back

To write a balanced chemical equation, identify reactants and products, write their formulas, and adjust coefficients to ensure the same number of each atom on both sides.