Reactions in Solution | Stoichiometry (Unit 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 that do not change during the reaction.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is stoichiometry?

Back

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced chemical equation.

Front

What does it mean for a reaction to go to completion?

Back

A reaction goes to completion when the reactants are completely converted into products, with no remaining reactants.

Front

What is the significance of the mole in chemistry?

Back

The mole is a unit that measures the amount of substance, defined as containing 6.022 x 10^23 entities (atoms, molecules, etc.).

Front

How do you determine the limiting reactant in a chemical reaction?

Back

The limiting reactant is the substance that is completely consumed first in a reaction, limiting the amount of product formed.

Front

What is a precipitate?

Back

A precipitate is an insoluble solid that forms when two aqueous solutions are mixed and a chemical reaction occurs.

Front

What is the role of water in dissolving ionic compounds?

Back

Water molecules surround and separate the ions in an ionic compound, allowing them to disperse and form a solution.

Front

What is the complete ionic equation?

Back

A complete ionic equation shows all the ions present in a solution before and after a reaction, including spectator ions.

Front

What is a spectator ion?

Back

A spectator ion is an ion that does not participate in the actual chemical reaction and remains unchanged in the solution.