Analytical Chemistry Final Exam

How does the density of water change as it freezes into ice?

• Increases

• Decreases

• Remains the same

• Fluctuates

At what temperature does water reach its maximum density?

• 0 degrees Celsius

• 4 degrees Celsius

• 100 degrees Celsius

• -10 degrees Celsius

How does the density of water compare to the density of most oils?

• Water is denser

• oils are denser

• they have the same density

• depends on the type of oil

What is the standard unit for expressing density?

• grams

• cubic meters

• kilograms per liter

• grams per cubic centimeters

How does the density of saltwater compare to the density of tap water?

• Saltwater is denser

• Tap water is denser

• They have the same density

• Depends on the salt concentration

What effect does pressure have on the density of water?

• Increases density

• Decreases density

• no effect

• depends on the temperature

How does the density of steam (water vapor) compare to liquid water?

• Steam is denser

• liquid water is denser

• they have the same density

• depends on the pressure

What is the approximate density of ice?

• 0.92 g/cm³

• 1.0 g/cm³

• 0.8 g/cm³

• 1.5 g/cm³

How does the density of water change with increasing temperature?

• increases

• decreases

• stays the same

• depends on the pressure

Which property of water is responsible for its unusual density behavior near freezing?

• Hydrogen bonding

• Covalent bonding

• ionic bonding

• metallic bonding