Final Chapters 18,19 22

Front

What is a precipitate?

Back

An insoluble compound that comes out of a solution during a double-displacement reaction.

Front

Why can ammonia be considered a base even though it does not contain –OH?

Back

Ammonia attracts a hydrogen ion from water to form an ammonium ion and a hydroxide ion.

Front

In the reaction HCl + NaHCO₃ → NaCl + CO₂ + H₂O, what is the salt formed?

Back

NaCl.

Front

What is an acid according to the document?

Back

A substance that produces hydrogen ions in a water solution.

Front

What is a strong acid?

Back

An acid that dissociates almost completely in solution.

Front

What is a double-displacement reaction?

Back

A reaction where two compounds exchange ions to form two new compounds.

Front

What is the pH scale?

Back

A scale that measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic).

Front

What is the difference between a strong acid and a weak acid?

Back

A strong acid dissociates completely in solution, while a weak acid only partially dissociates.

Front

What is a hydroxide ion?

Back

A negatively charged ion (OH⁻) that is formed when a base dissolves in water.

Front

What is the role of water in acid-base reactions?

Back

Water can act as a solvent and can also participate in the transfer of hydrogen ions.