Lesson 2.5: Investigation: Acids and Bases, Page 3

Now, complete page 3, "Defining Acids" of the the applet "Acids and Bases". 

Then, answer the following questions.  

Question 1. Circle the correct word for each underlined part.  An acid will turn blue/red litmus paper blue/red while leaving blue/red litmus paper blue/red.

Question 2. Circle the correct word for the underlined part.  Bromothymol blue will be blue/yellow in an acid solution.

Question 3. Circle the correct word for the underlined part.  Phenolphthalein will be clear/pink in an acid solution.

Question 4. Circle the correct word for the underlined part.  All acids conduct/do not conduct electricity and have a pH greater/less than 7.

Check your answers with those that follow.

 

 

 

 

 

 

 

 

 

 

 

 

Answers to Questions:

Question 1. Circle the correct word for each underlined part.  An acid will turn blue/red litmus paper blue/red, while leaving blue/red litmus paper blue/red.

An acid will turn blue litmus paper red while leaving red litmus paper red.

Question 2. Circle the correct word for the underlined part.  Bromothymol blue will be blue/yellow in an acid solution.

Bromothymol blue will be yellow in an acid solution.

Question 3. Circle the correct word for the underlined part.  Phenolphthalein will be clear/pink in an acid solution.

Phenolphthalein will be clear in an acid solution.

Question 4. Circle the correct word for the underlined part.  All acids conduct/do not conduct electricity and have a pH greater/less than 7.

All acids conduct electricity and have a pH less than 7.

 


Click on the page forward to continue this investigation of Lesson 2.