Acids and Bases

Front

What is the pH value of milk, which is a very weak acid?

Back

6.5

Front

What is the pH of pure water?

Back

7 (neutral substance)

Front

Which of the following is a base: orange juice, water, vinegar, or dishwashing detergent?

Back

Dishwashing detergent

Front

What pH value represents an acid?

Back

4

Front

What are the properties of acids?

Back

They conduct electricity when dissolved in water, taste sour, and react with metals to produce hydrogen gas.

Front

What is an acid?

Back

A substance that donates protons (H+) in a solution.

Front

What is a base?

Back

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

Front

What is the pH scale?

Back

A scale that measures how acidic or basic a substance is, ranging from 0 to 14.

Front

What pH value is considered neutral?

Back

7

Front

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

Back

The pH decreases.