Acids, Bases, and pH review

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

Front

What is the pH of a neutral substance?

Back

The pH of a neutral substance is equal to 7.

Front

What is a strong acid?

Back

A strong acid is an acid that completely ionizes in solution, releasing all of its hydrogen ions.

Front

What is a weak acid?

Back

A weak acid is an acid that partially ionizes in solution, meaning not all of its hydrogen ions are released.

Front

What is the relationship between pH and hydrogen ion concentration?

Back

pH is the negative logarithm of the hydrogen ion concentration; as the concentration of H+ increases, pH decreases.

Front

What are the properties of bases?

Back

Bases are slippery, bitter, do not react with metals, and have a pH above 7.

Front

What is the definition of pH?

Back

pH is a measure of the hydrogen ion concentration in a solution, indicating its acidity or basicity.

Front

What is the effect of acids on litmus paper?

Back

Acids turn blue litmus paper red.