Unit 4 Review

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

When dissolved in water, acids produce:

• bases
• salts
• hydrogen ions
• hydroxide ions

Which of the following will conduct electricity? Select all that apply

• Acidic solutions

• Basic solutions

• Ionic solutions

• Neutral covalent solutions

Which of the following are properties of acids but not bases? Select all that apply.

• Changes the color of an indicator

• Sour taste

• Reacts with metals to produce hydrogen gas

• Feels slippery

An Arrhenius acid

• produces hydroxide ions in a solution

• produces hydrogen ions in a solution

• is a proton donor

• is a proton acceptor

A Bronsted-Lowry base

• produces hydroxide ions in a solution

• produces hydrogen ions in a solution

• is a proton donor

• is a proton acceptor

Which of the following statements is true concerning acids and bases?

• acids and bases don't react with each other

• acids mixed with bases neutralize each other

• acids mixed with bases make stronger bases

• acids mixed with bases make stronger acids

pH is the measure of the concentration of ______.

• Acids

• OH- ion

• H+ ion

• Bases

The esophagus is the tube that connects the mouth to the stomach. Heartburn occurs when some of the stomach juices flow backwards up the esophagus. To help relieve heartburn, a person should take medicine that is

• neutral

• basic

• acidic or basic.

• acidic

In a neutralization reaction, what are the products of a reaction between an acid and a base?

• Another acid and base
• Carbon dioxide and a salt
• Water and a salt
• Either two acids or two bases