Chem 2

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic
• slightly acidic
• strongly basic
• slightly basic

The table shows the pH of several solutions. Which solution is the most alkaline or basic?

• vinegar

• milk

• water

• bleach

Al(OH)₃ is an example of a...

• acid

• base

• salt

• water

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most acidic to basic?

• lemon juice, milk, baking soda, bleach

• milk, lemon juice, bleach, baking soda

• lemon juice, milk, bleach, baking soda

• bleach, baking soda, milk, lemon juice

If a solution has a pH of 8.5, then litmus would turn

• red

• purple

• blue

• yellow

According to the diagram, which part of the digestive system has the most basic enviroment?

• Mouth

• Stomach

• Pancreas

• Small intestine

Which substance is always a product when an Arrhenius acid in an aqueous solution reacts with an

Arrhenius base in an aqueous solution?

• HBr

• KBr

• H₂O

• KOH

What does pH measure?

• strength of an acid

• strength of a base

• strength of both acids and bases

• concentration of H+ ions

What happens to the acidity of a solution as the pH value decreases?

• It increases

• It decreases

• It remains the same

• It becomes neutral

Identify the products of this reaction.

H₂SO₄ + NaOH

• Na₂SO₄

• H₂O

• Na₂SO₄ + H₂O

• NaOH