Acids and Bases Flashcard

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is the pH scale?

Back

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

Front

What pH value indicates a neutral solution?

Back

A neutral solution has a pH of 7.

Front

What happens to litmus paper in an acidic solution?

Back

Litmus paper turns red in an acidic solution.

Front

What happens to litmus paper in a basic solution?

Back

Litmus paper turns blue in a basic solution.

Front

What is the pH of tomato soup?

Back

Tomato soup has a pH of around 4, indicating it is acidic.

Front

What is the pH of baking soda?

Back

Baking soda has a pH of around 9, indicating it is basic.

Front

What is a strong acid?

Back

A strong acid is an acid that completely dissociates in water, releasing all of its protons.

Front

What is a weak acid?

Back

A weak acid is an acid that partially dissociates in water, releasing some but not all of its protons.