Acids, Bases, and the pH Scale Review

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a substance is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is an acid?

Back

An acid is a substance that donates hydrogen ions (H+) in a solution, typically having a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions or releases hydroxide ions (OH-) in a solution, typically having a pH greater than 7.

Front

What is neutralization?

Back

Neutralization is a chemical reaction between an acid and a base that produces water and a salt, resulting in a solution that is closer to neutral pH.

Front

What happens to pH when an acid is added to water?

Back

The pH of the solution decreases, making it more acidic.

Front

What happens to pH when a base is added to water?

Back

The pH of the solution increases, making it more basic.

Front

What is litmus paper used for?

Back

Litmus paper is used to test the pH of a solution; it turns red in acidic solutions and blue in basic solutions.

Front

What is the pH of a strong acid?

Back

A strong acid typically has a pH close to 0, indicating a high concentration of hydrogen ions.

Front

What is the pH of a strong base?

Back

A strong base typically has a pH close to 14, indicating a high concentration of hydroxide ions.

Front

What is a neutral solution?

Back

A neutral solution has a pH of 7, meaning it is neither acidic nor basic.