MORE Acids, bases & pH

Front

What is an acid?

Back

An acid is a substance that releases H+ ions when dissolved in water.

Front

What is a base?

Back

A base is a substance that releases OH- ions when dissolved in water.

Front

What happens to blue litmus paper when it comes in contact with an acid?

Back

It turns red.

Front

What happens to red litmus paper when it comes in contact with a base?

Back

It turns blue.

Front

What is the pH scale?

Back

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

Front

What is the pH of vinegar?

Back

Vinegar typically has a pH of around 2-3, indicating it is acidic.

Front

What is the pH of water?

Back

Pure water has a pH of 7, which is neutral.

Front

What is the relationship between H+ ions and acidity?

Back

The greater the concentration of H+ ions in a solution, the more acidic it is.

Front

What is a common example of a base?

Back

Common examples of bases include baking soda and soap.

Front

What is a neutral solution?

Back

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