U6 Q1 Acids and Bases

Front

What is an acid?

Back

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

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions (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 does a pH of 7 indicate?

Back

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

Front

What is a characteristic of acids?

Back

Acids typically have a sour taste and can be corrosive.

Front

What is a characteristic of bases?

Back

Bases typically have a bitter taste and feel slippery to the touch.

Front

What happens when an acid reacts with a base?

Back

When an acid reacts with a base, they neutralize each other, producing water and a salt.

Front

What is an example of a strong acid?

Back

Hydrochloric acid (HCl) is an example of a strong acid.

Front

What is an example of a strong base?

Back

Sodium hydroxide (NaOH) is an example of a strong base.

Front

What is litmus paper used for?

Back

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