U6 Q1 Acids and Bases

Front

What is an acid?

Back

An acid is a substance that donates hydrogen ions (H+) in a solution, typically has a sour taste, and turns blue litmus paper red.

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions (H+) or releases hydroxide ions (OH-) in a solution, typically has a bitter taste, and turns red litmus paper blue.

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, 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 undergo a neutralization reaction, producing water and a salt.

Front

What is an example of a common acid?

Back

Common acids include hydrochloric acid (HCl) found in stomach acid and citric acid found in citrus fruits.

Front

What is an example of a common base?

Back

Common bases include sodium hydroxide (NaOH) found in drain cleaners and baking soda (sodium bicarbonate) used in cooking.

Front

What is the effect of acids on litmus paper?

Back

Acids turn blue litmus paper red.