Acids and Bases

Front

What do acids produce when dissolved in water?

Back

Hydrogen ions (H+) are produced when acids are dissolved in water.

Front

What is the pH of pure water?

Back

Pure water has a pH of 7 and is considered a neutral substance.

Front

What pH value indicates a weaker base?

Back

Weaker bases have a pH closer to 8.

Front

What pH value indicates a basic solution?

Back

A basic solution has a pH greater than 7, for example, a pH of 9.

Front

Which ion is more present in a basic solution?

Back

In a basic solution, hydroxide ions (OH-) are more present.

Front

What is the definition of an acid?

Back

An acid is a substance that donates hydrogen ions (H+) in a solution.

Front

What is the definition of a base?

Back

A base is a substance that accepts hydrogen ions (H+) or donates hydroxide ions (OH-) in a solution.

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.

Front

What happens to the pH of a solution when an acid is added?

Back

The pH of the solution decreases (becomes more acidic) when an acid is added.

Front

What happens to the pH of a solution when a base is added?

Back

The pH of the solution increases (becomes more basic) when a base is added.