Acids Bases and pH Test

Front

What are acids?

Back

Acids are substances that have a pH less than 7, taste sour, and can release hydrogen ions (H+) in water.

Front

What are bases?

Back

Bases are substances that have a pH greater than 7, taste bitter, and can accept hydrogen ions (H+).

Front

What is pH?

Back

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

Front

What is a neutral substance?

Back

A neutral substance has an equal concentration of hydrogen ions (H+) and hydroxide ions (OH-), resulting in a pH of 7.

Front

What is the characteristic taste of acids?

Back

Acids typically have a sour taste.

Front

What is the characteristic taste of bases?

Back

Bases typically have a bitter taste.

Front

What happens when an acid and a base react?

Back

When an acid and a base react, they undergo a neutralization reaction, producing water and a salt.

Front

What is a common indicator used to test pH?

Back

Litmus paper is a common indicator used to test whether a solution is acidic or basic.

Front

What color does litmus paper turn in an acidic solution?

Back

Litmus paper turns red in an acidic solution.

Front

What color does litmus paper turn in a basic solution?

Back

Litmus paper turns blue in a basic solution.