CK-12 Physical Science Concepts - For Middle School

3.52. Properties of Acids http://www.ck12.org

FIGURE 3.98

Nitric acid and Phosphoric acid: Both

nitric acid and phosphoric acid are used

to make fertilizer. Hydrochloric acid: Hy-

drochloric acid is used to clean swimming

pools, bricks, and concrete. Sulfuric acid:

Sulfuric Acid is an important component

of car batteries.

Vocabulary

• acid: Ionic compound that produces positive hydrogen ions (H+) when dissolved in water.

Explore More

At the following URLs, watch the videos about hydrochloric acid, and then answer the questions below.

http://www.youtube.com/watch?v=U6viBSkLkSk (Part I)

MEDIA

Click image to the left for use the URL below.

URL: http://www.ck12.org/flx/render/embeddedobject/82384

http://www.youtube.com/watch?v=W7GE56dxS8o (Part II)

MEDIA

Click image to the left for use the URL below.

URL: http://www.ck12.org/flx/render/embeddedobject/82385

1. What is hydrochloric acid?


2. Everyone carries around a sample of hydrochloric acid. Where is the hydrochloric acid, and what is its
   function?


3. Describe what happens when a cheeseburger and then a goose skull are placed in hydrochloric acid.


4. When zinc metal is added to hydrochloric acid, how can you tell that hydrogen gas is produced?

Review

1. What is an acid?


2. List properties of acids.